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Finding the Fourth Proportional to 392,060.34, 540,959.58 and 230,856.48

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Solution

The fourth proportional to 392,060.34, 540,959.58 and 230,856.48 is: 318,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,060.34 : 540,959.58 = 230,856.48 : x
  2. Step 2: Convert to fraction form
    392,060.34/540,959.58 = 230,856.48/x
  3. Step 3: Cross multiply
    392,060.34x = 540,959.58 × 230,856.48
  4. Step 4: Simplify right side
    392,060.34x = 124,884,024,461.08
  5. Step 5: Solve for x
    x = 124,884,024,461.08/392,060.34
  6. Step 6: Final answer
    x = 318,532.66

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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.