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Finding the Fourth Proportional to 426,290.48, 588,280.92 and 235,303.91

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Solution

The fourth proportional to 426,290.48, 588,280.92 and 235,303.91 is: 324,719.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,290.48 : 588,280.92 = 235,303.91 : x
  2. Step 2: Convert to fraction form
    426,290.48/588,280.92 = 235,303.91/x
  3. Step 3: Cross multiply
    426,290.48x = 588,280.92 × 235,303.91
  4. Step 4: Simplify right side
    426,290.48x = 138,424,800,654.40
  5. Step 5: Solve for x
    x = 138,424,800,654.40/426,290.48
  6. Step 6: Final answer
    x = 324,719.43

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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.