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Finding the Fourth Proportional to 567,977.40, 851,966.10 and 168,679.80

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Solution

The fourth proportional to 567,977.40, 851,966.10 and 168,679.80 is: 253,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,977.40 : 851,966.10 = 168,679.80 : x
  2. Step 2: Convert to fraction form
    567,977.40/851,966.10 = 168,679.80/x
  3. Step 3: Cross multiply
    567,977.40x = 851,966.10 × 168,679.80
  4. Step 4: Simplify right side
    567,977.40x = 143,709,471,354.78
  5. Step 5: Solve for x
    x = 143,709,471,354.78/567,977.40
  6. Step 6: Final answer
    x = 253,019.70

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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.