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Finding the Fourth Proportional to 521,750.70, 782,626.05 and 189,206.70

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Solution

The fourth proportional to 521,750.70, 782,626.05 and 189,206.70 is: 283,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,750.70 : 782,626.05 = 189,206.70 : x
  2. Step 2: Convert to fraction form
    521,750.70/782,626.05 = 189,206.70/x
  3. Step 3: Cross multiply
    521,750.70x = 782,626.05 × 189,206.70
  4. Step 4: Simplify right side
    521,750.70x = 148,078,092,254.54
  5. Step 5: Solve for x
    x = 148,078,092,254.54/521,750.70
  6. Step 6: Final answer
    x = 283,810.05

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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.