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Finding the Fourth Proportional to 475,069.20, 655,595.56 and 260,216.92

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Solution

The fourth proportional to 475,069.20, 655,595.56 and 260,216.92 is: 359,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,069.20 : 655,595.56 = 260,216.92 : x
  2. Step 2: Convert to fraction form
    475,069.20/655,595.56 = 260,216.92/x
  3. Step 3: Cross multiply
    475,069.20x = 655,595.56 × 260,216.92
  4. Step 4: Simplify right side
    475,069.20x = 170,597,057,388.88
  5. Step 5: Solve for x
    x = 170,597,057,388.88/475,069.20
  6. Step 6: Final answer
    x = 359,099.38

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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.