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Finding the Fourth Proportional to 674,244.36, 930,454.38 and 372,438.36

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Solution

The fourth proportional to 674,244.36, 930,454.38 and 372,438.36 is: 513,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,244.36 : 930,454.38 = 372,438.36 : x
  2. Step 2: Convert to fraction form
    674,244.36/930,454.38 = 372,438.36/x
  3. Step 3: Cross multiply
    674,244.36x = 930,454.38 × 372,438.36
  4. Step 4: Simplify right side
    674,244.36x = 346,536,903,342.02
  5. Step 5: Solve for x
    x = 346,536,903,342.02/674,244.36
  6. Step 6: Final answer
    x = 513,963.37

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Double scale
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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.