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Finding the Fourth Proportional to 546,725.76, 819,423.75 and 386,847.77

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Solution

The fourth proportional to 546,725.76, 819,423.75 and 386,847.77 is: 579,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,725.76 : 819,423.75 = 386,847.77 : x
  2. Step 2: Convert to fraction form
    546,725.76/819,423.75 = 386,847.77/x
  3. Step 3: Cross multiply
    546,725.76x = 819,423.75 × 386,847.77
  4. Step 4: Simplify right side
    546,725.76x = 316,992,247,726.10
  5. Step 5: Solve for x
    x = 316,992,247,726.10/546,725.76
  6. Step 6: Final answer
    x = 579,801.20

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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.