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Finding the Fourth Proportional to 666,187.20, 999,280.80 and 466,732.80

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Solution

The fourth proportional to 666,187.20, 999,280.80 and 466,732.80 is: 700,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,187.20 : 999,280.80 = 466,732.80 : x
  2. Step 2: Convert to fraction form
    666,187.20/999,280.80 = 466,732.80/x
  3. Step 3: Cross multiply
    666,187.20x = 999,280.80 × 466,732.80
  4. Step 4: Simplify right side
    666,187.20x = 466,397,125,770.24
  5. Step 5: Solve for x
    x = 466,397,125,770.24/666,187.20
  6. Step 6: Final answer
    x = 700,099.20

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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.