Home / 679,967,557.20-1,019,951,335.80-625,547,998.80

Finding the Fourth Proportional to 679,967,557.20, 1,019,951,335.80 and 625,547,998.80

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Solution

The fourth proportional to 679,967,557.20, 1,019,951,335.80 and 625,547,998.80 is: 938,321,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,967,557.20 : 1,019,951,335.80 = 625,547,998.80 : x
  2. Step 2: Convert to fraction form
    679,967,557.20/1,019,951,335.80 = 625,547,998.80/x
  3. Step 3: Cross multiply
    679,967,557.20x = 1,019,951,335.80 × 625,547,998.80
  4. Step 4: Simplify right side
    679,967,557.20x = 638,028,516,983,076,736
  5. Step 5: Solve for x
    x = 638,028,516,983,076,736/679,967,557.20
  6. Step 6: Final answer
    x = 938,321,998.20

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Double scale
Find fourth proportional to 679,967,558.20, 1,019,951,337.30 and 625,547,999.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.