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Finding the Fourth Proportional to 1,168,524, 1,612,563.12 and 631,980

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Solution

The fourth proportional to 1,168,524, 1,612,563.12 and 631,980 is: 872,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,524 : 1,612,563.12 = 631,980 : x
  2. Step 2: Convert to fraction form
    1,168,524/1,612,563.12 = 631,980/x
  3. Step 3: Cross multiply
    1,168,524x = 1,612,563.12 × 631,980
  4. Step 4: Simplify right side
    1,168,524x = 1,019,107,640,577.60
  5. Step 5: Solve for x
    x = 1,019,107,640,577.60/1,168,524
  6. Step 6: Final answer
    x = 872,132.40

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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.