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Finding the Fourth Proportional to 524,708.80, 788,812.80 and 447,726.40

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Solution

The fourth proportional to 524,708.80, 788,812.80 and 447,726.40 is: 673,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,708.80 : 788,812.80 = 447,726.40 : x
  2. Step 2: Convert to fraction form
    524,708.80/788,812.80 = 447,726.40/x
  3. Step 3: Cross multiply
    524,708.80x = 788,812.80 × 447,726.40
  4. Step 4: Simplify right side
    524,708.80x = 353,172,315,217.92
  5. Step 5: Solve for x
    x = 353,172,315,217.92/524,708.80
  6. Step 6: Final answer
    x = 673,082.51

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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.