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Finding the Fourth Proportional to 479,329.20, 718,308.64 and 351,970.16

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Solution

The fourth proportional to 479,329.20, 718,308.64 and 351,970.16 is: 527,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,329.20 : 718,308.64 = 351,970.16 : x
  2. Step 2: Convert to fraction form
    479,329.20/718,308.64 = 351,970.16/x
  3. Step 3: Cross multiply
    479,329.20x = 718,308.64 × 351,970.16
  4. Step 4: Simplify right side
    479,329.20x = 252,823,206,950.18
  5. Step 5: Solve for x
    x = 252,823,206,950.18/479,329.20
  6. Step 6: Final answer
    x = 527,452.13

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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.