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Finding the Fourth Proportional to 498,313.60, 747,470.40 and 346,098.40

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Solution

The fourth proportional to 498,313.60, 747,470.40 and 346,098.40 is: 519,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,313.60 : 747,470.40 = 346,098.40 : x
  2. Step 2: Convert to fraction form
    498,313.60/747,470.40 = 346,098.40/x
  3. Step 3: Cross multiply
    498,313.60x = 747,470.40 × 346,098.40
  4. Step 4: Simplify right side
    498,313.60x = 258,698,309,487.36
  5. Step 5: Solve for x
    x = 258,698,309,487.36/498,313.60
  6. Step 6: Final answer
    x = 519,147.60

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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.