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Finding the Fourth Proportional to 359,518.60, 539,277.90 and 225,965.80

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Solution

The fourth proportional to 359,518.60, 539,277.90 and 225,965.80 is: 338,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,518.60 : 539,277.90 = 225,965.80 : x
  2. Step 2: Convert to fraction form
    359,518.60/539,277.90 = 225,965.80/x
  3. Step 3: Cross multiply
    359,518.60x = 539,277.90 × 225,965.80
  4. Step 4: Simplify right side
    359,518.60x = 121,858,362,095.82
  5. Step 5: Solve for x
    x = 121,858,362,095.82/359,518.60
  6. Step 6: Final answer
    x = 338,948.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.