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Finding the Fourth Proportional to 353,647.20, 530,470.80 and 241,672.80

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Solution

The fourth proportional to 353,647.20, 530,470.80 and 241,672.80 is: 362,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,647.20 : 530,470.80 = 241,672.80 : x
  2. Step 2: Convert to fraction form
    353,647.20/530,470.80 = 241,672.80/x
  3. Step 3: Cross multiply
    353,647.20x = 530,470.80 × 241,672.80
  4. Step 4: Simplify right side
    353,647.20x = 128,200,363,554.24
  5. Step 5: Solve for x
    x = 128,200,363,554.24/353,647.20
  6. Step 6: Final answer
    x = 362,509.20

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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.