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Finding the Fourth Proportional to 511,238.96, 705,426.78 and 296,337.04

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Solution

The fourth proportional to 511,238.96, 705,426.78 and 296,337.04 is: 408,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,238.96 : 705,426.78 = 296,337.04 : x
  2. Step 2: Convert to fraction form
    511,238.96/705,426.78 = 296,337.04/x
  3. Step 3: Cross multiply
    511,238.96x = 705,426.78 × 296,337.04
  4. Step 4: Simplify right side
    511,238.96x = 209,044,083,921.93
  5. Step 5: Solve for x
    x = 209,044,083,921.93/511,238.96
  6. Step 6: Final answer
    x = 408,897.01

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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.