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Finding the Fourth Proportional to 426,710.72, 588,857.28 and 235,720.10

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Solution

The fourth proportional to 426,710.72, 588,857.28 and 235,720.10 is: 325,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,710.72 : 588,857.28 = 235,720.10 : x
  2. Step 2: Convert to fraction form
    426,710.72/588,857.28 = 235,720.10/x
  3. Step 3: Cross multiply
    426,710.72x = 588,857.28 × 235,720.10
  4. Step 4: Simplify right side
    426,710.72x = 138,805,496,927.33
  5. Step 5: Solve for x
    x = 138,805,496,927.33/426,710.72
  6. Step 6: Final answer
    x = 325,291.80

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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.