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Finding the Fourth Proportional to 488,562.80, 732,844.20 and 339,263.60

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Solution

The fourth proportional to 488,562.80, 732,844.20 and 339,263.60 is: 508,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,562.80 : 732,844.20 = 339,263.60 : x
  2. Step 2: Convert to fraction form
    488,562.80/732,844.20 = 339,263.60/x
  3. Step 3: Cross multiply
    488,562.80x = 732,844.20 × 339,263.60
  4. Step 4: Simplify right side
    488,562.80x = 248,627,361,531.12
  5. Step 5: Solve for x
    x = 248,627,361,531.12/488,562.80
  6. Step 6: Final answer
    x = 508,895.40

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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.