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Finding the Fourth Proportional to 344,987.76, 517,445.24 and 92,293.76

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Solution

The fourth proportional to 344,987.76, 517,445.24 and 92,293.76 is: 138,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,987.76 : 517,445.24 = 92,293.76 : x
  2. Step 2: Convert to fraction form
    344,987.76/517,445.24 = 92,293.76/x
  3. Step 3: Cross multiply
    344,987.76x = 517,445.24 × 92,293.76
  4. Step 4: Simplify right side
    344,987.76x = 47,756,966,793.70
  5. Step 5: Solve for x
    x = 47,756,966,793.70/344,987.76
  6. Step 6: Final answer
    x = 138,430.90

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1.5x scale

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.