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Finding the Fourth Proportional to 410,571.16, 615,768.72 and 239,679.04

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Solution

The fourth proportional to 410,571.16, 615,768.72 and 239,679.04 is: 359,467.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,571.16 : 615,768.72 = 239,679.04 : x
  2. Step 2: Convert to fraction form
    410,571.16/615,768.72 = 239,679.04/x
  3. Step 3: Cross multiply
    410,571.16x = 615,768.72 × 239,679.04
  4. Step 4: Simplify right side
    410,571.16x = 147,586,855,671.63
  5. Step 5: Solve for x
    x = 147,586,855,671.63/410,571.16
  6. Step 6: Final answer
    x = 359,467.18

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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.