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Finding the Fourth Proportional to 469,868.28, 648,417.96 and 265,915.50

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Solution

The fourth proportional to 469,868.28, 648,417.96 and 265,915.50 is: 366,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,868.28 : 648,417.96 = 265,915.50 : x
  2. Step 2: Convert to fraction form
    469,868.28/648,417.96 = 265,915.50/x
  3. Step 3: Cross multiply
    469,868.28x = 648,417.96 × 265,915.50
  4. Step 4: Simplify right side
    469,868.28x = 172,424,386,042.38
  5. Step 5: Solve for x
    x = 172,424,386,042.38/469,868.28
  6. Step 6: Final answer
    x = 366,963.24

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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.