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Finding the Fourth Proportional to 440,666.80, 608,074.39 and 259,367.92

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Solution

The fourth proportional to 440,666.80, 608,074.39 and 259,367.92 is: 357,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,666.80 : 608,074.39 = 259,367.92 : x
  2. Step 2: Convert to fraction form
    440,666.80/608,074.39 = 259,367.92/x
  3. Step 3: Cross multiply
    440,666.80x = 608,074.39 × 259,367.92
  4. Step 4: Simplify right side
    440,666.80x = 157,714,991,964.01
  5. Step 5: Solve for x
    x = 157,714,991,964.01/440,666.80
  6. Step 6: Final answer
    x = 357,900.78

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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.