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Finding the Fourth Proportional to 677,546.76, 935,019.12 and 371,625.28

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Solution

The fourth proportional to 677,546.76, 935,019.12 and 371,625.28 is: 512,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,546.76 : 935,019.12 = 371,625.28 : x
  2. Step 2: Convert to fraction form
    677,546.76/935,019.12 = 371,625.28/x
  3. Step 3: Cross multiply
    677,546.76x = 935,019.12 × 371,625.28
  4. Step 4: Simplify right side
    677,546.76x = 347,476,741,331.40
  5. Step 5: Solve for x
    x = 347,476,741,331.40/677,546.76
  6. Step 6: Final answer
    x = 512,845.40

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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.