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Finding the Fourth Proportional to 426,580, 588,680.40 and 247,743.52

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Solution

The fourth proportional to 426,580, 588,680.40 and 247,743.52 is: 341,886.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,580 : 588,680.40 = 247,743.52 : x
  2. Step 2: Convert to fraction form
    426,580/588,680.40 = 247,743.52/x
  3. Step 3: Cross multiply
    426,580x = 588,680.40 × 247,743.52
  4. Step 4: Simplify right side
    426,580x = 145,841,754,451.01
  5. Step 5: Solve for x
    x = 145,841,754,451.01/426,580
  6. Step 6: Final answer
    x = 341,886.06

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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.