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Finding the Fourth Proportional to 504,443.64, 696,136.88 and 278,097.24

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Solution

The fourth proportional to 504,443.64, 696,136.88 and 278,097.24 is: 383,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,443.64 : 696,136.88 = 278,097.24 : x
  2. Step 2: Convert to fraction form
    504,443.64/696,136.88 = 278,097.24/x
  3. Step 3: Cross multiply
    504,443.64x = 696,136.88 × 278,097.24
  4. Step 4: Simplify right side
    504,443.64x = 193,593,744,990.21
  5. Step 5: Solve for x
    x = 193,593,744,990.21/504,443.64
  6. Step 6: Final answer
    x = 383,776.76

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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.