Home / 1,171,538.56-1,755,301.65-639,433

Finding the Fourth Proportional to 1,171,538.56, 1,755,301.65 and 639,433

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Solution

The fourth proportional to 1,171,538.56, 1,755,301.65 and 639,433 is: 958,054.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,538.56 : 1,755,301.65 = 639,433 : x
  2. Step 2: Convert to fraction form
    1,171,538.56/1,755,301.65 = 639,433/x
  3. Step 3: Cross multiply
    1,171,538.56x = 1,755,301.65 × 639,433
  4. Step 4: Simplify right side
    1,171,538.56x = 1,122,397,799,964.45
  5. Step 5: Solve for x
    x = 1,122,397,799,964.45/1,171,538.56
  6. Step 6: Final answer
    x = 958,054.51

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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.