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Finding the Fourth Proportional to 558,963.18, 771,372.72 and 304,317

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Solution

The fourth proportional to 558,963.18, 771,372.72 and 304,317 is: 419,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,963.18 : 771,372.72 = 304,317 : x
  2. Step 2: Convert to fraction form
    558,963.18/771,372.72 = 304,317/x
  3. Step 3: Cross multiply
    558,963.18x = 771,372.72 × 304,317
  4. Step 4: Simplify right side
    558,963.18x = 234,741,832,032.24
  5. Step 5: Solve for x
    x = 234,741,832,032.24/558,963.18
  6. Step 6: Final answer
    x = 419,959.38

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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.