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Finding the Fourth Proportional to 516,170.48, 712,372.68 and 301,363.76

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Solution

The fourth proportional to 516,170.48, 712,372.68 and 301,363.76 is: 415,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,170.48 : 712,372.68 = 301,363.76 : x
  2. Step 2: Convert to fraction form
    516,170.48/712,372.68 = 301,363.76/x
  3. Step 3: Cross multiply
    516,170.48x = 712,372.68 × 301,363.76
  4. Step 4: Simplify right side
    516,170.48x = 214,683,309,366.08
  5. Step 5: Solve for x
    x = 214,683,309,366.08/516,170.48
  6. Step 6: Final answer
    x = 415,915.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.