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Finding the Fourth Proportional to 546,101.10, 819,151.65 and 309,905.10

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Solution

The fourth proportional to 546,101.10, 819,151.65 and 309,905.10 is: 464,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,101.10 : 819,151.65 = 309,905.10 : x
  2. Step 2: Convert to fraction form
    546,101.10/819,151.65 = 309,905.10/x
  3. Step 3: Cross multiply
    546,101.10x = 819,151.65 × 309,905.10
  4. Step 4: Simplify right side
    546,101.10x = 253,859,274,008.42
  5. Step 5: Solve for x
    x = 253,859,274,008.42/546,101.10
  6. Step 6: Final answer
    x = 464,857.65

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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.