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Finding the Fourth Proportional to 566,203.89, 781,337.92 and 308,081.91

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Solution

The fourth proportional to 566,203.89, 781,337.92 and 308,081.91 is: 425,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,203.89 : 781,337.92 = 308,081.91 : x
  2. Step 2: Convert to fraction form
    566,203.89/781,337.92 = 308,081.91/x
  3. Step 3: Cross multiply
    566,203.89x = 781,337.92 × 308,081.91
  4. Step 4: Simplify right side
    566,203.89x = 240,716,078,749.03
  5. Step 5: Solve for x
    x = 240,716,078,749.03/566,203.89
  6. Step 6: Final answer
    x = 425,140.28

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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.