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Finding the Fourth Proportional to 363,970.80, 545,956.20 and 237,999.60

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Solution

The fourth proportional to 363,970.80, 545,956.20 and 237,999.60 is: 356,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,970.80 : 545,956.20 = 237,999.60 : x
  2. Step 2: Convert to fraction form
    363,970.80/545,956.20 = 237,999.60/x
  3. Step 3: Cross multiply
    363,970.80x = 545,956.20 × 237,999.60
  4. Step 4: Simplify right side
    363,970.80x = 129,937,357,217.52
  5. Step 5: Solve for x
    x = 129,937,357,217.52/363,970.80
  6. Step 6: Final answer
    x = 356,999.40

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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.