Home / 662,701.10-914,484.03-390,755.85

Finding the Fourth Proportional to 662,701.10, 914,484.03 and 390,755.85

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Solution

The fourth proportional to 662,701.10, 914,484.03 and 390,755.85 is: 539,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,701.10 : 914,484.03 = 390,755.85 : x
  2. Step 2: Convert to fraction form
    662,701.10/914,484.03 = 390,755.85/x
  3. Step 3: Cross multiply
    662,701.10x = 914,484.03 × 390,755.85
  4. Step 4: Simplify right side
    662,701.10x = 357,339,979,559.43
  5. Step 5: Solve for x
    x = 357,339,979,559.43/662,701.10
  6. Step 6: Final answer
    x = 539,217.43

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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.