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Finding the Fourth Proportional to 469,578.75, 704,368.13 and 220,260.75

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Solution

The fourth proportional to 469,578.75, 704,368.13 and 220,260.75 is: 330,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,578.75 : 704,368.13 = 220,260.75 : x
  2. Step 2: Convert to fraction form
    469,578.75/704,368.13 = 220,260.75/x
  3. Step 3: Cross multiply
    469,578.75x = 704,368.13 × 220,260.75
  4. Step 4: Simplify right side
    469,578.75x = 155,144,651,488.59
  5. Step 5: Solve for x
    x = 155,144,651,488.59/469,578.75
  6. Step 6: Final answer
    x = 330,391.13

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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.