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Finding the Fourth Proportional to 644,153.11, 961,891.89 and 526,058.71

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Solution

The fourth proportional to 644,153.11, 961,891.89 and 526,058.71 is: 785,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,153.11 : 961,891.89 = 526,058.71 : x
  2. Step 2: Convert to fraction form
    644,153.11/961,891.89 = 526,058.71/x
  3. Step 3: Cross multiply
    644,153.11x = 961,891.89 × 526,058.71
  4. Step 4: Simplify right side
    644,153.11x = 506,011,606,812.86
  5. Step 5: Solve for x
    x = 506,011,606,812.86/644,153.11
  6. Step 6: Final answer
    x = 785,545.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.