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Finding the Fourth Proportional to 556,114.60, 834,171.90 and 345,644.20

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Solution

The fourth proportional to 556,114.60, 834,171.90 and 345,644.20 is: 518,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,114.60 : 834,171.90 = 345,644.20 : x
  2. Step 2: Convert to fraction form
    556,114.60/834,171.90 = 345,644.20/x
  3. Step 3: Cross multiply
    556,114.60x = 834,171.90 × 345,644.20
  4. Step 4: Simplify right side
    556,114.60x = 288,326,679,037.98
  5. Step 5: Solve for x
    x = 288,326,679,037.98/556,114.60
  6. Step 6: Final answer
    x = 518,466.30

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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.