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Finding the Fourth Proportional to 504,378.24, 696,044.16 and 278,018.88

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Solution

The fourth proportional to 504,378.24, 696,044.16 and 278,018.88 is: 383,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,378.24 : 696,044.16 = 278,018.88 : x
  2. Step 2: Convert to fraction form
    504,378.24/696,044.16 = 278,018.88/x
  3. Step 3: Cross multiply
    504,378.24x = 696,044.16 × 278,018.88
  4. Step 4: Simplify right side
    504,378.24x = 193,513,417,793.74
  5. Step 5: Solve for x
    x = 193,513,417,793.74/504,378.24
  6. Step 6: Final answer
    x = 383,667.26

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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.