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Finding the Fourth Proportional to 532,456.40, 798,684.60 and 488,910.80

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Solution

The fourth proportional to 532,456.40, 798,684.60 and 488,910.80 is: 733,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,456.40 : 798,684.60 = 488,910.80 : x
  2. Step 2: Convert to fraction form
    532,456.40/798,684.60 = 488,910.80/x
  3. Step 3: Cross multiply
    532,456.40x = 798,684.60 × 488,910.80
  4. Step 4: Simplify right side
    532,456.40x = 390,485,526,733.68
  5. Step 5: Solve for x
    x = 390,485,526,733.68/532,456.40
  6. Step 6: Final answer
    x = 733,366.20

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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.