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Finding the Fourth Proportional to 547,092.57, 755,113.72 and 320,810.97

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Solution

The fourth proportional to 547,092.57, 755,113.72 and 320,810.97 is: 442,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,092.57 : 755,113.72 = 320,810.97 : x
  2. Step 2: Convert to fraction form
    547,092.57/755,113.72 = 320,810.97/x
  3. Step 3: Cross multiply
    547,092.57x = 755,113.72 × 320,810.97
  4. Step 4: Simplify right side
    547,092.57x = 242,248,764,973.51
  5. Step 5: Solve for x
    x = 242,248,764,973.51/547,092.57
  6. Step 6: Final answer
    x = 442,793.01

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1.5x scale

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.