Home / 662,352.11-914,165.20-390,404.13

Finding the Fourth Proportional to 662,352.11, 914,165.20 and 390,404.13

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Solution

The fourth proportional to 662,352.11, 914,165.20 and 390,404.13 is: 538,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,352.11 : 914,165.20 = 390,404.13 : x
  2. Step 2: Convert to fraction form
    662,352.11/914,165.20 = 390,404.13/x
  3. Step 3: Cross multiply
    662,352.11x = 914,165.20 × 390,404.13
  4. Step 4: Simplify right side
    662,352.11x = 356,893,869,582.28
  5. Step 5: Solve for x
    x = 356,893,869,582.28/662,352.11
  6. Step 6: Final answer
    x = 538,828.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.