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Finding the Fourth Proportional to 677,560.67, 935,027.35 and 371,630.78

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Solution

The fourth proportional to 677,560.67, 935,027.35 and 371,630.78 is: 512,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,560.67 : 935,027.35 = 371,630.78 : x
  2. Step 2: Convert to fraction form
    677,560.67/935,027.35 = 371,630.78/x
  3. Step 3: Cross multiply
    677,560.67x = 935,027.35 × 371,630.78
  4. Step 4: Simplify right side
    677,560.67x = 347,484,937,797.62
  5. Step 5: Solve for x
    x = 347,484,937,797.62/677,560.67
  6. Step 6: Final answer
    x = 512,846.98

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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.