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Finding the Fourth Proportional to 551,416.90, 827,125.35 and 235,905.70

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Solution

The fourth proportional to 551,416.90, 827,125.35 and 235,905.70 is: 353,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,416.90 : 827,125.35 = 235,905.70 : x
  2. Step 2: Convert to fraction form
    551,416.90/827,125.35 = 235,905.70/x
  3. Step 3: Cross multiply
    551,416.90x = 827,125.35 × 235,905.70
  4. Step 4: Simplify right side
    551,416.90x = 195,123,584,679.50
  5. Step 5: Solve for x
    x = 195,123,584,679.50/551,416.90
  6. Step 6: Final answer
    x = 353,858.55

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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.