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Finding the Fourth Proportional to 558,725.72, 771,122.77 and 313,737.98

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Solution

The fourth proportional to 558,725.72, 771,122.77 and 313,737.98 is: 433,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,725.72 : 771,122.77 = 313,737.98 : x
  2. Step 2: Convert to fraction form
    558,725.72/771,122.77 = 313,737.98/x
  3. Step 3: Cross multiply
    558,725.72x = 771,122.77 × 313,737.98
  4. Step 4: Simplify right side
    558,725.72x = 241,930,495,551.85
  5. Step 5: Solve for x
    x = 241,930,495,551.85/558,725.72
  6. Step 6: Final answer
    x = 433,004.05

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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.