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Finding the Fourth Proportional to 375,679.32, 518,490.60 and 232,485.48

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Solution

The fourth proportional to 375,679.32, 518,490.60 and 232,485.48 is: 320,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,679.32 : 518,490.60 = 232,485.48 : x
  2. Step 2: Convert to fraction form
    375,679.32/518,490.60 = 232,485.48/x
  3. Step 3: Cross multiply
    375,679.32x = 518,490.60 × 232,485.48
  4. Step 4: Simplify right side
    375,679.32x = 120,541,536,016.49
  5. Step 5: Solve for x
    x = 120,541,536,016.49/375,679.32
  6. Step 6: Final answer
    x = 320,862.85

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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.