Home / 554,443.20-831,664.80-519,451.20

Finding the Fourth Proportional to 554,443.20, 831,664.80 and 519,451.20

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Solution

The fourth proportional to 554,443.20, 831,664.80 and 519,451.20 is: 779,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,443.20 : 831,664.80 = 519,451.20 : x
  2. Step 2: Convert to fraction form
    554,443.20/831,664.80 = 519,451.20/x
  3. Step 3: Cross multiply
    554,443.20x = 831,664.80 × 519,451.20
  4. Step 4: Simplify right side
    554,443.20x = 432,009,278,357.76
  5. Step 5: Solve for x
    x = 432,009,278,357.76/554,443.20
  6. Step 6: Final answer
    x = 779,176.80

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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.