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Finding the Fourth Proportional to 517,257.20, 775,886.70 and 162,298.46

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Solution

The fourth proportional to 517,257.20, 775,886.70 and 162,298.46 is: 243,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,257.20 : 775,886.70 = 162,298.46 : x
  2. Step 2: Convert to fraction form
    517,257.20/775,886.70 = 162,298.46/x
  3. Step 3: Cross multiply
    517,257.20x = 775,886.70 × 162,298.46
  4. Step 4: Simplify right side
    517,257.20x = 125,925,216,544.48
  5. Step 5: Solve for x
    x = 125,925,216,544.48/517,257.20
  6. Step 6: Final answer
    x = 243,447.97

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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.