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Finding the Fourth Proportional to 539,063.10, 808,594.65 and 165,086.10

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Solution

The fourth proportional to 539,063.10, 808,594.65 and 165,086.10 is: 247,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,063.10 : 808,594.65 = 165,086.10 : x
  2. Step 2: Convert to fraction form
    539,063.10/808,594.65 = 165,086.10/x
  3. Step 3: Cross multiply
    539,063.10x = 808,594.65 × 165,086.10
  4. Step 4: Simplify right side
    539,063.10x = 133,487,737,249.37
  5. Step 5: Solve for x
    x = 133,487,737,249.37/539,063.10
  6. Step 6: Final answer
    x = 247,629.15

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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.