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Finding the Fourth Proportional to 543,323.70, 814,985.55 and 341,244.90

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Solution

The fourth proportional to 543,323.70, 814,985.55 and 341,244.90 is: 511,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,323.70 : 814,985.55 = 341,244.90 : x
  2. Step 2: Convert to fraction form
    543,323.70/814,985.55 = 341,244.90/x
  3. Step 3: Cross multiply
    543,323.70x = 814,985.55 × 341,244.90
  4. Step 4: Simplify right side
    543,323.70x = 278,109,662,511.20
  5. Step 5: Solve for x
    x = 278,109,662,511.20/543,323.70
  6. Step 6: Final answer
    x = 511,867.35

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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.