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Finding the Fourth Proportional to 539,443.88, 744,428.88 and 297,726.45

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Solution

The fourth proportional to 539,443.88, 744,428.88 and 297,726.45 is: 410,860.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,443.88 : 744,428.88 = 297,726.45 : x
  2. Step 2: Convert to fraction form
    539,443.88/744,428.88 = 297,726.45/x
  3. Step 3: Cross multiply
    539,443.88x = 744,428.88 × 297,726.45
  4. Step 4: Simplify right side
    539,443.88x = 221,636,167,719.88
  5. Step 5: Solve for x
    x = 221,636,167,719.88/539,443.88
  6. Step 6: Final answer
    x = 410,860.48

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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.