Home / 1,182,757.20-1,632,203.90-638,892.80

Finding the Fourth Proportional to 1,182,757.20, 1,632,203.90 and 638,892.80

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Solution

The fourth proportional to 1,182,757.20, 1,632,203.90 and 638,892.80 is: 881,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,757.20 : 1,632,203.90 = 638,892.80 : x
  2. Step 2: Convert to fraction form
    1,182,757.20/1,632,203.90 = 638,892.80/x
  3. Step 3: Cross multiply
    1,182,757.20x = 1,632,203.90 × 638,892.80
  4. Step 4: Simplify right side
    1,182,757.20x = 1,042,803,319,841.92
  5. Step 5: Solve for x
    x = 1,042,803,319,841.92/1,182,757.20
  6. Step 6: Final answer
    x = 881,671.50

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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.