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Finding the Fourth Proportional to 498,430.20, 747,645.30 and 463,000.80

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Solution

The fourth proportional to 498,430.20, 747,645.30 and 463,000.80 is: 694,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,430.20 : 747,645.30 = 463,000.80 : x
  2. Step 2: Convert to fraction form
    498,430.20/747,645.30 = 463,000.80/x
  3. Step 3: Cross multiply
    498,430.20x = 747,645.30 × 463,000.80
  4. Step 4: Simplify right side
    498,430.20x = 346,160,372,016.24
  5. Step 5: Solve for x
    x = 346,160,372,016.24/498,430.20
  6. Step 6: Final answer
    x = 694,501.20

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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.