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Finding the Fourth Proportional to 555,207.16, 832,686.16 and 255,399.80

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Solution

The fourth proportional to 555,207.16, 832,686.16 and 255,399.80 is: 383,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,207.16 : 832,686.16 = 255,399.80 : x
  2. Step 2: Convert to fraction form
    555,207.16/832,686.16 = 255,399.80/x
  3. Step 3: Cross multiply
    555,207.16x = 832,686.16 × 255,399.80
  4. Step 4: Simplify right side
    555,207.16x = 212,667,878,726.77
  5. Step 5: Solve for x
    x = 212,667,878,726.77/555,207.16
  6. Step 6: Final answer
    x = 383,042.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.