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Finding the Fourth Proportional to 253,298.76, 379,572.16 and 140,824.24

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Solution

The fourth proportional to 253,298.76, 379,572.16 and 140,824.24 is: 211,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,298.76 : 379,572.16 = 140,824.24 : x
  2. Step 2: Convert to fraction form
    253,298.76/379,572.16 = 140,824.24/x
  3. Step 3: Cross multiply
    253,298.76x = 379,572.16 × 140,824.24
  4. Step 4: Simplify right side
    253,298.76x = 53,452,960,957.16
  5. Step 5: Solve for x
    x = 53,452,960,957.16/253,298.76
  6. Step 6: Final answer
    x = 211,027.33

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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.