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Finding the Fourth Proportional to 612,114.40, 918,171.60 and 332,178.40

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Solution

The fourth proportional to 612,114.40, 918,171.60 and 332,178.40 is: 498,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,114.40 : 918,171.60 = 332,178.40 : x
  2. Step 2: Convert to fraction form
    612,114.40/918,171.60 = 332,178.40/x
  3. Step 3: Cross multiply
    612,114.40x = 918,171.60 × 332,178.40
  4. Step 4: Simplify right side
    612,114.40x = 304,996,773,013.44
  5. Step 5: Solve for x
    x = 304,996,773,013.44/612,114.40
  6. Step 6: Final answer
    x = 498,267.60

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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.