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Finding the Fourth Proportional to 454,041.20, 680,770.20 and 187,907.60

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Solution

The fourth proportional to 454,041.20, 680,770.20 and 187,907.60 is: 281,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,041.20 : 680,770.20 = 187,907.60 : x
  2. Step 2: Convert to fraction form
    454,041.20/680,770.20 = 187,907.60/x
  3. Step 3: Cross multiply
    454,041.20x = 680,770.20 × 187,907.60
  4. Step 4: Simplify right side
    454,041.20x = 127,921,894,433.52
  5. Step 5: Solve for x
    x = 127,921,894,433.52/454,041.20
  6. Step 6: Final answer
    x = 281,740.72

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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.