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Finding the Fourth Proportional to 498,311.60, 747,467.40 and 346,096.40

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Solution

The fourth proportional to 498,311.60, 747,467.40 and 346,096.40 is: 519,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,311.60 : 747,467.40 = 346,096.40 : x
  2. Step 2: Convert to fraction form
    498,311.60/747,467.40 = 346,096.40/x
  3. Step 3: Cross multiply
    498,311.60x = 747,467.40 × 346,096.40
  4. Step 4: Simplify right side
    498,311.60x = 258,695,776,257.36
  5. Step 5: Solve for x
    x = 258,695,776,257.36/498,311.60
  6. Step 6: Final answer
    x = 519,144.60

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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.