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Finding the Fourth Proportional to 498,324.40, 747,486.60 and 472,080.40

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Solution

The fourth proportional to 498,324.40, 747,486.60 and 472,080.40 is: 708,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,324.40 : 747,486.60 = 472,080.40 : x
  2. Step 2: Convert to fraction form
    498,324.40/747,486.60 = 472,080.40/x
  3. Step 3: Cross multiply
    498,324.40x = 747,486.60 × 472,080.40
  4. Step 4: Simplify right side
    498,324.40x = 352,873,773,122.64
  5. Step 5: Solve for x
    x = 352,873,773,122.64/498,324.40
  6. Step 6: Final answer
    x = 708,120.60

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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.