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Finding the Fourth Proportional to 560,476.38, 840,715.50 and 448,866.48

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Solution

The fourth proportional to 560,476.38, 840,715.50 and 448,866.48 is: 673,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,476.38 : 840,715.50 = 448,866.48 : x
  2. Step 2: Convert to fraction form
    560,476.38/840,715.50 = 448,866.48/x
  3. Step 3: Cross multiply
    560,476.38x = 840,715.50 × 448,866.48
  4. Step 4: Simplify right side
    560,476.38x = 377,369,007,166.44
  5. Step 5: Solve for x
    x = 377,369,007,166.44/560,476.38
  6. Step 6: Final answer
    x = 673,300.46

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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.