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Finding the Fourth Proportional to 480,790.72, 663,432.96 and 265,901.50

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Solution

The fourth proportional to 480,790.72, 663,432.96 and 265,901.50 is: 366,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,790.72 : 663,432.96 = 265,901.50 : x
  2. Step 2: Convert to fraction form
    480,790.72/663,432.96 = 265,901.50/x
  3. Step 3: Cross multiply
    480,790.72x = 663,432.96 × 265,901.50
  4. Step 4: Simplify right side
    480,790.72x = 176,407,819,213.44
  5. Step 5: Solve for x
    x = 176,407,819,213.44/480,790.72
  6. Step 6: Final answer
    x = 366,911.86

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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.