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Finding the Fourth Proportional to 514,780.62, 772,440.20 and 373,790.54

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Solution

The fourth proportional to 514,780.62, 772,440.20 and 373,790.54 is: 560,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,780.62 : 772,440.20 = 373,790.54 : x
  2. Step 2: Convert to fraction form
    514,780.62/772,440.20 = 373,790.54/x
  3. Step 3: Cross multiply
    514,780.62x = 772,440.20 × 373,790.54
  4. Step 4: Simplify right side
    514,780.62x = 288,730,839,475.71
  5. Step 5: Solve for x
    x = 288,730,839,475.71/514,780.62
  6. Step 6: Final answer
    x = 560,881.33

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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.