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Finding the Fourth Proportional to 443,834.32, 612,605.28 and 273,970.84

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Solution

The fourth proportional to 443,834.32, 612,605.28 and 273,970.84 is: 378,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,834.32 : 612,605.28 = 273,970.84 : x
  2. Step 2: Convert to fraction form
    443,834.32/612,605.28 = 273,970.84/x
  3. Step 3: Cross multiply
    443,834.32x = 612,605.28 × 273,970.84
  4. Step 4: Simplify right side
    443,834.32x = 167,835,983,150.04
  5. Step 5: Solve for x
    x = 167,835,983,150.04/443,834.32
  6. Step 6: Final answer
    x = 378,150.08

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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.