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Finding the Fourth Proportional to 468,515.36, 702,438.96 and 219,061.28

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Solution

The fourth proportional to 468,515.36, 702,438.96 and 219,061.28 is: 328,435.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,515.36 : 702,438.96 = 219,061.28 : x
  2. Step 2: Convert to fraction form
    468,515.36/702,438.96 = 219,061.28/x
  3. Step 3: Cross multiply
    468,515.36x = 702,438.96 × 219,061.28
  4. Step 4: Simplify right side
    468,515.36x = 153,877,177,699.47
  5. Step 5: Solve for x
    x = 153,877,177,699.47/468,515.36
  6. Step 6: Final answer
    x = 328,435.72

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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.