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Finding the Fourth Proportional to 408,053.90, 571,865.95 and 408,053.90

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Solution

The fourth proportional to 408,053.90, 571,865.95 and 408,053.90 is: 571,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,053.90 : 571,865.95 = 408,053.90 : x
  2. Step 2: Convert to fraction form
    408,053.90/571,865.95 = 408,053.90/x
  3. Step 3: Cross multiply
    408,053.90x = 571,865.95 × 408,053.90
  4. Step 4: Simplify right side
    408,053.90x = 233,352,131,174.71
  5. Step 5: Solve for x
    x = 233,352,131,174.71/408,053.90
  6. Step 6: Final answer
    x = 571,865.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.