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Finding the Fourth Proportional to 578,005.28, 797,593.20 and 360,193.76

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Solution

The fourth proportional to 578,005.28, 797,593.20 and 360,193.76 is: 497,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,005.28 : 797,593.20 = 360,193.76 : x
  2. Step 2: Convert to fraction form
    578,005.28/797,593.20 = 360,193.76/x
  3. Step 3: Cross multiply
    578,005.28x = 797,593.20 × 360,193.76
  4. Step 4: Simplify right side
    578,005.28x = 287,288,093,658.43
  5. Step 5: Solve for x
    x = 287,288,093,658.43/578,005.28
  6. Step 6: Final answer
    x = 497,033.68

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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.