Home / 627,726.74-865,449.81-406,570.55

Finding the Fourth Proportional to 627,726.74, 865,449.81 and 406,570.55

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Solution

The fourth proportional to 627,726.74, 865,449.81 and 406,570.55 is: 560,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,726.74 : 865,449.81 = 406,570.55 : x
  2. Step 2: Convert to fraction form
    627,726.74/865,449.81 = 406,570.55/x
  3. Step 3: Cross multiply
    627,726.74x = 865,449.81 × 406,570.55
  4. Step 4: Simplify right side
    627,726.74x = 351,866,398,888.99
  5. Step 5: Solve for x
    x = 351,866,398,888.99/627,726.74
  6. Step 6: Final answer
    x = 560,540.72

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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.