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Finding the Fourth Proportional to 402,615.04, 605,043.84 and 375,959.92

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Solution

The fourth proportional to 402,615.04, 605,043.84 and 375,959.92 is: 564,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,615.04 : 605,043.84 = 375,959.92 : x
  2. Step 2: Convert to fraction form
    402,615.04/605,043.84 = 375,959.92/x
  3. Step 3: Cross multiply
    402,615.04x = 605,043.84 × 375,959.92
  4. Step 4: Simplify right side
    402,615.04x = 227,472,233,682.89
  5. Step 5: Solve for x
    x = 227,472,233,682.89/402,615.04
  6. Step 6: Final answer
    x = 564,986.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.