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Finding the Fourth Proportional to 1,982,831.31, 2,974,248.63 and 543,530.37

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Solution

The fourth proportional to 1,982,831.31, 2,974,248.63 and 543,530.37 is: 815,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,831.31 : 2,974,248.63 = 543,530.37 : x
  2. Step 2: Convert to fraction form
    1,982,831.31/2,974,248.63 = 543,530.37/x
  3. Step 3: Cross multiply
    1,982,831.31x = 2,974,248.63 × 543,530.37
  4. Step 4: Simplify right side
    1,982,831.31x = 1,616,594,458,335.89
  5. Step 5: Solve for x
    x = 1,616,594,458,335.89/1,982,831.31
  6. Step 6: Final answer
    x = 815,296.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.