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Finding the Fourth Proportional to 426,078.92, 587,988.42 and 235,092.28

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Solution

The fourth proportional to 426,078.92, 587,988.42 and 235,092.28 is: 324,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,078.92 : 587,988.42 = 235,092.28 : x
  2. Step 2: Convert to fraction form
    426,078.92/587,988.42 = 235,092.28/x
  3. Step 3: Cross multiply
    426,078.92x = 587,988.42 × 235,092.28
  4. Step 4: Simplify right side
    426,078.92x = 138,231,538,271.40
  5. Step 5: Solve for x
    x = 138,231,538,271.40/426,078.92
  6. Step 6: Final answer
    x = 324,427.08

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1.5x scale

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.