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Finding the Fourth Proportional to 482,156.52, 665,920.68 and 328,931.64

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Solution

The fourth proportional to 482,156.52, 665,920.68 and 328,931.64 is: 454,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,156.52 : 665,920.68 = 328,931.64 : x
  2. Step 2: Convert to fraction form
    482,156.52/665,920.68 = 328,931.64/x
  3. Step 3: Cross multiply
    482,156.52x = 665,920.68 × 328,931.64
  4. Step 4: Simplify right side
    482,156.52x = 219,042,381,382.32
  5. Step 5: Solve for x
    x = 219,042,381,382.32/482,156.52
  6. Step 6: Final answer
    x = 454,297.25

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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.