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Finding the Fourth Proportional to 359,438.51, 538,873.67 and 179,431.55

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Solution

The fourth proportional to 359,438.51, 538,873.67 and 179,431.55 is: 269,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,438.51 : 538,873.67 = 179,431.55 : x
  2. Step 2: Convert to fraction form
    359,438.51/538,873.67 = 179,431.55/x
  3. Step 3: Cross multiply
    359,438.51x = 538,873.67 × 179,431.55
  4. Step 4: Simplify right side
    359,438.51x = 96,690,937,862.29
  5. Step 5: Solve for x
    x = 96,690,937,862.29/359,438.51
  6. Step 6: Final answer
    x = 269,005.50

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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.