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Finding the Fourth Proportional to 533,872.48, 736,671.18 and 318,966.88

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Solution

The fourth proportional to 533,872.48, 736,671.18 and 318,966.88 is: 440,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,872.48 : 736,671.18 = 318,966.88 : x
  2. Step 2: Convert to fraction form
    533,872.48/736,671.18 = 318,966.88/x
  3. Step 3: Cross multiply
    533,872.48x = 736,671.18 × 318,966.88
  4. Step 4: Simplify right side
    533,872.48x = 234,973,707,870.52
  5. Step 5: Solve for x
    x = 234,973,707,870.52/533,872.48
  6. Step 6: Final answer
    x = 440,130.77

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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.