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Finding the Fourth Proportional to 533,873.48, 736,672.56 and 318,967.88

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Solution

The fourth proportional to 533,873.48, 736,672.56 and 318,967.88 is: 440,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,873.48 : 736,672.56 = 318,967.88 : x
  2. Step 2: Convert to fraction form
    533,873.48/736,672.56 = 318,967.88/x
  3. Step 3: Cross multiply
    533,873.48x = 736,672.56 × 318,967.88
  4. Step 4: Simplify right side
    533,873.48x = 234,974,884,717.37
  5. Step 5: Solve for x
    x = 234,974,884,717.37/533,873.48
  6. Step 6: Final answer
    x = 440,132.15

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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.