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Finding the Fourth Proportional to 540,909.20, 811,440.60 and 166,893.20

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Solution

The fourth proportional to 540,909.20, 811,440.60 and 166,893.20 is: 250,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,909.20 : 811,440.60 = 166,893.20 : x
  2. Step 2: Convert to fraction form
    540,909.20/811,440.60 = 166,893.20/x
  3. Step 3: Cross multiply
    540,909.20x = 811,440.60 × 166,893.20
  4. Step 4: Simplify right side
    540,909.20x = 135,423,918,343.92
  5. Step 5: Solve for x
    x = 135,423,918,343.92/540,909.20
  6. Step 6: Final answer
    x = 250,363.50

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Half scale
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Double scale
Find fourth proportional to 540,910.20, 811,442.10 and 166,894.20
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.