Home / 627,726.12-865,448.96-406,569.93

Finding the Fourth Proportional to 627,726.12, 865,448.96 and 406,569.93

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Solution

The fourth proportional to 627,726.12, 865,448.96 and 406,569.93 is: 560,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,726.12 : 865,448.96 = 406,569.93 : x
  2. Step 2: Convert to fraction form
    627,726.12/865,448.96 = 406,569.93/x
  3. Step 3: Cross multiply
    627,726.12x = 865,448.96 × 406,569.93
  4. Step 4: Simplify right side
    627,726.12x = 351,865,526,487.23
  5. Step 5: Solve for x
    x = 351,865,526,487.23/627,726.12
  6. Step 6: Final answer
    x = 560,539.88

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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.