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Finding the Fourth Proportional to 493,534.80, 740,302.20 and 178,023.60

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Solution

The fourth proportional to 493,534.80, 740,302.20 and 178,023.60 is: 267,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,534.80 : 740,302.20 = 178,023.60 : x
  2. Step 2: Convert to fraction form
    493,534.80/740,302.20 = 178,023.60/x
  3. Step 3: Cross multiply
    493,534.80x = 740,302.20 × 178,023.60
  4. Step 4: Simplify right side
    493,534.80x = 131,791,262,731.92
  5. Step 5: Solve for x
    x = 131,791,262,731.92/493,534.80
  6. Step 6: Final answer
    x = 267,035.40

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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.