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Finding the Fourth Proportional to 504,406.92, 696,081.30 and 278,056.20

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Solution

The fourth proportional to 504,406.92, 696,081.30 and 278,056.20 is: 383,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,406.92 : 696,081.30 = 278,056.20 : x
  2. Step 2: Convert to fraction form
    504,406.92/696,081.30 = 278,056.20/x
  3. Step 3: Cross multiply
    504,406.92x = 696,081.30 × 278,056.20
  4. Step 4: Simplify right side
    504,406.92x = 193,549,721,169.06
  5. Step 5: Solve for x
    x = 193,549,721,169.06/504,406.92
  6. Step 6: Final answer
    x = 383,717.42

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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.