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Finding the Fourth Proportional to 498,528.90, 747,793.35 and 472,284.90

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Solution

The fourth proportional to 498,528.90, 747,793.35 and 472,284.90 is: 708,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,528.90 : 747,793.35 = 472,284.90 : x
  2. Step 2: Convert to fraction form
    498,528.90/747,793.35 = 472,284.90/x
  3. Step 3: Cross multiply
    498,528.90x = 747,793.35 × 472,284.90
  4. Step 4: Simplify right side
    498,528.90x = 353,171,507,525.42
  5. Step 5: Solve for x
    x = 353,171,507,525.42/498,528.90
  6. Step 6: Final answer
    x = 708,427.35

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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.