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Finding the Fourth Proportional to 591,898.66, 888,071.55 and 355,405.66

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Solution

The fourth proportional to 591,898.66, 888,071.55 and 355,405.66 is: 533,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,898.66 : 888,071.55 = 355,405.66 : x
  2. Step 2: Convert to fraction form
    591,898.66/888,071.55 = 355,405.66/x
  3. Step 3: Cross multiply
    591,898.66x = 888,071.55 × 355,405.66
  4. Step 4: Simplify right side
    591,898.66x = 315,625,655,354.97
  5. Step 5: Solve for x
    x = 315,625,655,354.97/591,898.66
  6. Step 6: Final answer
    x = 533,242.73

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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.