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Finding the Fourth Proportional to 263,763.46, 363,972.02 and 154,856.32

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Solution

The fourth proportional to 263,763.46, 363,972.02 and 154,856.32 is: 213,689.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,763.46 : 363,972.02 = 154,856.32 : x
  2. Step 2: Convert to fraction form
    263,763.46/363,972.02 = 154,856.32/x
  3. Step 3: Cross multiply
    263,763.46x = 363,972.02 × 154,856.32
  4. Step 4: Simplify right side
    263,763.46x = 56,363,367,600.17
  5. Step 5: Solve for x
    x = 56,363,367,600.17/263,763.46
  6. Step 6: Final answer
    x = 213,689.07

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1.5x scale

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.