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Finding the Fourth Proportional to 624,116.70, 936,175.05 and 551,799.90

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Solution

The fourth proportional to 624,116.70, 936,175.05 and 551,799.90 is: 827,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,116.70 : 936,175.05 = 551,799.90 : x
  2. Step 2: Convert to fraction form
    624,116.70/936,175.05 = 551,799.90/x
  3. Step 3: Cross multiply
    624,116.70x = 936,175.05 × 551,799.90
  4. Step 4: Simplify right side
    624,116.70x = 516,581,298,972.50
  5. Step 5: Solve for x
    x = 516,581,298,972.50/624,116.70
  6. Step 6: Final answer
    x = 827,699.85

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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.