Home / 629,575.18-868,567.13-387,437.38

Finding the Fourth Proportional to 629,575.18, 868,567.13 and 387,437.38

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Solution

The fourth proportional to 629,575.18, 868,567.13 and 387,437.38 is: 534,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,575.18 : 868,567.13 = 387,437.38 : x
  2. Step 2: Convert to fraction form
    629,575.18/868,567.13 = 387,437.38/x
  3. Step 3: Cross multiply
    629,575.18x = 868,567.13 × 387,437.38
  4. Step 4: Simplify right side
    629,575.18x = 336,515,373,201.32
  5. Step 5: Solve for x
    x = 336,515,373,201.32/629,575.18
  6. Step 6: Final answer
    x = 534,511.82

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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.