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Finding the Fourth Proportional to 606,813.12, 909,422.64 and 527,549.76

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Solution

The fourth proportional to 606,813.12, 909,422.64 and 527,549.76 is: 790,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,813.12 : 909,422.64 = 527,549.76 : x
  2. Step 2: Convert to fraction form
    606,813.12/909,422.64 = 527,549.76/x
  3. Step 3: Cross multiply
    606,813.12x = 909,422.64 × 527,549.76
  4. Step 4: Simplify right side
    606,813.12x = 479,765,695,470.57
  5. Step 5: Solve for x
    x = 479,765,695,470.57/606,813.12
  6. Step 6: Final answer
    x = 790,631.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.