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Finding the Fourth Proportional to 470,924.28, 650,115.90 and 318,766.59

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Solution

The fourth proportional to 470,924.28, 650,115.90 and 318,766.59 is: 440,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,924.28 : 650,115.90 = 318,766.59 : x
  2. Step 2: Convert to fraction form
    470,924.28/650,115.90 = 318,766.59/x
  3. Step 3: Cross multiply
    470,924.28x = 650,115.90 × 318,766.59
  4. Step 4: Simplify right side
    470,924.28x = 207,235,228,547.78
  5. Step 5: Solve for x
    x = 207,235,228,547.78/470,924.28
  6. Step 6: Final answer
    x = 440,060.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.