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Finding the Fourth Proportional to 624,111.70, 936,167.55 and 551,794.90

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Solution

The fourth proportional to 624,111.70, 936,167.55 and 551,794.90 is: 827,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,111.70 : 936,167.55 = 551,794.90 : x
  2. Step 2: Convert to fraction form
    624,111.70/936,167.55 = 551,794.90/x
  3. Step 3: Cross multiply
    624,111.70x = 936,167.55 × 551,794.90
  4. Step 4: Simplify right side
    624,111.70x = 516,572,479,635.50
  5. Step 5: Solve for x
    x = 516,572,479,635.50/624,111.70
  6. Step 6: Final answer
    x = 827,692.35

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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.