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Finding the Fourth Proportional to 359,384.64, 538,639.68 and 254,233.92

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Solution

The fourth proportional to 359,384.64, 538,639.68 and 254,233.92 is: 381,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,384.64 : 538,639.68 = 254,233.92 : x
  2. Step 2: Convert to fraction form
    359,384.64/538,639.68 = 254,233.92/x
  3. Step 3: Cross multiply
    359,384.64x = 538,639.68 × 254,233.92
  4. Step 4: Simplify right side
    359,384.64x = 136,940,477,313.95
  5. Step 5: Solve for x
    x = 136,940,477,313.95/359,384.64
  6. Step 6: Final answer
    x = 381,041.54

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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.