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Finding the Fourth Proportional to 532,327.20, 798,490.80 and 217,010.40

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Solution

The fourth proportional to 532,327.20, 798,490.80 and 217,010.40 is: 325,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,327.20 : 798,490.80 = 217,010.40 : x
  2. Step 2: Convert to fraction form
    532,327.20/798,490.80 = 217,010.40/x
  3. Step 3: Cross multiply
    532,327.20x = 798,490.80 × 217,010.40
  4. Step 4: Simplify right side
    532,327.20x = 173,280,807,904.32
  5. Step 5: Solve for x
    x = 173,280,807,904.32/532,327.20
  6. Step 6: Final answer
    x = 325,515.60

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Double scale
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Similar ratio
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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.