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Finding the Fourth Proportional to 637,105.74, 956,101.25 and 411,907.61

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Solution

The fourth proportional to 637,105.74, 956,101.25 and 411,907.61 is: 618,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,105.74 : 956,101.25 = 411,907.61 : x
  2. Step 2: Convert to fraction form
    637,105.74/956,101.25 = 411,907.61/x
  3. Step 3: Cross multiply
    637,105.74x = 956,101.25 × 411,907.61
  4. Step 4: Simplify right side
    637,105.74x = 393,825,373,965.47
  5. Step 5: Solve for x
    x = 393,825,373,965.47/637,105.74
  6. Step 6: Final answer
    x = 618,147.58

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Double scale
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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.