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Finding the Fourth Proportional to 363,902.20, 545,658.90 and 153,302.20

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Solution

The fourth proportional to 363,902.20, 545,658.90 and 153,302.20 is: 229,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,902.20 : 545,658.90 = 153,302.20 : x
  2. Step 2: Convert to fraction form
    363,902.20/545,658.90 = 153,302.20/x
  3. Step 3: Cross multiply
    363,902.20x = 545,658.90 × 153,302.20
  4. Step 4: Simplify right side
    363,902.20x = 83,650,709,819.58
  5. Step 5: Solve for x
    x = 83,650,709,819.58/363,902.20
  6. Step 6: Final answer
    x = 229,871.40

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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.