Home / 638,715.10-881,397.17-366,591.46

Finding the Fourth Proportional to 638,715.10, 881,397.17 and 366,591.46

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Solution

The fourth proportional to 638,715.10, 881,397.17 and 366,591.46 is: 505,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,715.10 : 881,397.17 = 366,591.46 : x
  2. Step 2: Convert to fraction form
    638,715.10/881,397.17 = 366,591.46/x
  3. Step 3: Cross multiply
    638,715.10x = 881,397.17 × 366,591.46
  4. Step 4: Simplify right side
    638,715.10x = 323,112,675,390.17
  5. Step 5: Solve for x
    x = 323,112,675,390.17/638,715.10
  6. Step 6: Final answer
    x = 505,879.19

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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.