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Finding the Fourth Proportional to 543,695.36, 750,315.84 and 328,874.72

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Solution

The fourth proportional to 543,695.36, 750,315.84 and 328,874.72 is: 453,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,695.36 : 750,315.84 = 328,874.72 : x
  2. Step 2: Convert to fraction form
    543,695.36/750,315.84 = 328,874.72/x
  3. Step 3: Cross multiply
    543,695.36x = 750,315.84 × 328,874.72
  4. Step 4: Simplify right side
    543,695.36x = 246,759,911,791.57
  5. Step 5: Solve for x
    x = 246,759,911,791.57/543,695.36
  6. Step 6: Final answer
    x = 453,856.94

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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.