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Finding the Fourth Proportional to 410,124.31, 616,060.79 and 386,154.55

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Solution

The fourth proportional to 410,124.31, 616,060.79 and 386,154.55 is: 580,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,124.31 : 616,060.79 = 386,154.55 : x
  2. Step 2: Convert to fraction form
    410,124.31/616,060.79 = 386,154.55/x
  3. Step 3: Cross multiply
    410,124.31x = 616,060.79 × 386,154.55
  4. Step 4: Simplify right side
    410,124.31x = 237,894,677,135.10
  5. Step 5: Solve for x
    x = 237,894,677,135.10/410,124.31
  6. Step 6: Final answer
    x = 580,055.05

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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.