Home / 1,182,780.38-1,632,235.63-638,916.05

Finding the Fourth Proportional to 1,182,780.38, 1,632,235.63 and 638,916.05

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Solution

The fourth proportional to 1,182,780.38, 1,632,235.63 and 638,916.05 is: 881,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,780.38 : 1,632,235.63 = 638,916.05 : x
  2. Step 2: Convert to fraction form
    1,182,780.38/1,632,235.63 = 638,916.05/x
  3. Step 3: Cross multiply
    1,182,780.38x = 1,632,235.63 × 638,916.05
  4. Step 4: Simplify right side
    1,182,780.38x = 1,042,861,546,867.08
  5. Step 5: Solve for x
    x = 1,042,861,546,867.08/1,182,780.38
  6. Step 6: Final answer
    x = 881,703.46

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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.