Home / 1,127,812.20-1,692,107.10-497,178.60

Finding the Fourth Proportional to 1,127,812.20, 1,692,107.10 and 497,178.60

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Solution

The fourth proportional to 1,127,812.20, 1,692,107.10 and 497,178.60 is: 745,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,812.20 : 1,692,107.10 = 497,178.60 : x
  2. Step 2: Convert to fraction form
    1,127,812.20/1,692,107.10 = 497,178.60/x
  3. Step 3: Cross multiply
    1,127,812.20x = 1,692,107.10 × 497,178.60
  4. Step 4: Simplify right side
    1,127,812.20x = 841,279,439,028.06
  5. Step 5: Solve for x
    x = 841,279,439,028.06/1,127,812.20
  6. Step 6: Final answer
    x = 745,939.30

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Double scale
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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.