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Finding the Fourth Proportional to 504,362.92, 696,020.70 and 278,012.20

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Solution

The fourth proportional to 504,362.92, 696,020.70 and 278,012.20 is: 383,656.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,362.92 : 696,020.70 = 278,012.20 : x
  2. Step 2: Convert to fraction form
    504,362.92/696,020.70 = 278,012.20/x
  3. Step 3: Cross multiply
    504,362.92x = 696,020.70 × 278,012.20
  4. Step 4: Simplify right side
    504,362.92x = 193,502,246,052.54
  5. Step 5: Solve for x
    x = 193,502,246,052.54/504,362.92
  6. Step 6: Final answer
    x = 383,656.76

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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.