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Finding the Fourth Proportional to 482,264.20, 665,140.62 and 310,201.93

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Solution

The fourth proportional to 482,264.20, 665,140.62 and 310,201.93 is: 427,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,264.20 : 665,140.62 = 310,201.93 : x
  2. Step 2: Convert to fraction form
    482,264.20/665,140.62 = 310,201.93/x
  3. Step 3: Cross multiply
    482,264.20x = 665,140.62 × 310,201.93
  4. Step 4: Simplify right side
    482,264.20x = 206,327,904,045.40
  5. Step 5: Solve for x
    x = 206,327,904,045.40/482,264.20
  6. Step 6: Final answer
    x = 427,831.68

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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.