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Finding the Fourth Proportional to 516,596.60, 775,001.28 and 216,900.92

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Solution

The fourth proportional to 516,596.60, 775,001.28 and 216,900.92 is: 325,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,596.60 : 775,001.28 = 216,900.92 : x
  2. Step 2: Convert to fraction form
    516,596.60/775,001.28 = 216,900.92/x
  3. Step 3: Cross multiply
    516,596.60x = 775,001.28 × 216,900.92
  4. Step 4: Simplify right side
    516,596.60x = 168,098,490,633.18
  5. Step 5: Solve for x
    x = 168,098,490,633.18/516,596.60
  6. Step 6: Final answer
    x = 325,396.05

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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.