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Finding the Fourth Proportional to 671,144.97, 926,180.19 and 369,338.97

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Solution

The fourth proportional to 671,144.97, 926,180.19 and 369,338.97 is: 509,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,144.97 : 926,180.19 = 369,338.97 : x
  2. Step 2: Convert to fraction form
    671,144.97/926,180.19 = 369,338.97/x
  3. Step 3: Cross multiply
    671,144.97x = 926,180.19 × 369,338.97
  4. Step 4: Simplify right side
    671,144.97x = 342,074,437,409.00
  5. Step 5: Solve for x
    x = 342,074,437,409.00/671,144.97
  6. Step 6: Final answer
    x = 509,687.85

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Double scale
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Similar ratio
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1.5x scale

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.