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Finding the Fourth Proportional to 636,288.39, 954,432.78 and 187,009.32

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Solution

The fourth proportional to 636,288.39, 954,432.78 and 187,009.32 is: 280,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,288.39 : 954,432.78 = 187,009.32 : x
  2. Step 2: Convert to fraction form
    636,288.39/954,432.78 = 187,009.32/x
  3. Step 3: Cross multiply
    636,288.39x = 954,432.78 × 187,009.32
  4. Step 4: Simplify right side
    636,288.39x = 178,487,825,173.51
  5. Step 5: Solve for x
    x = 178,487,825,173.51/636,288.39
  6. Step 6: Final answer
    x = 280,514.04

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1.5x scale

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.