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Finding the Fourth Proportional to 961,471.80, 1,326,791.07 and 525,882.15

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Solution

The fourth proportional to 961,471.80, 1,326,791.07 and 525,882.15 is: 725,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,471.80 : 1,326,791.07 = 525,882.15 : x
  2. Step 2: Convert to fraction form
    961,471.80/1,326,791.07 = 525,882.15/x
  3. Step 3: Cross multiply
    961,471.80x = 1,326,791.07 × 525,882.15
  4. Step 4: Simplify right side
    961,471.80x = 697,735,740,492.40
  5. Step 5: Solve for x
    x = 697,735,740,492.40/961,471.80
  6. Step 6: Final answer
    x = 725,695.48

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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.