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Finding the Fourth Proportional to 534,657.90, 801,986.85 and 345,701.10

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Solution

The fourth proportional to 534,657.90, 801,986.85 and 345,701.10 is: 518,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,657.90 : 801,986.85 = 345,701.10 : x
  2. Step 2: Convert to fraction form
    534,657.90/801,986.85 = 345,701.10/x
  3. Step 3: Cross multiply
    534,657.90x = 801,986.85 × 345,701.10
  4. Step 4: Simplify right side
    534,657.90x = 277,247,736,230.54
  5. Step 5: Solve for x
    x = 277,247,736,230.54/534,657.90
  6. Step 6: Final answer
    x = 518,551.65

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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.