Home / 876,077.97-1,209,534.89-671,736.13

Finding the Fourth Proportional to 876,077.97, 1,209,534.89 and 671,736.13

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Solution

The fourth proportional to 876,077.97, 1,209,534.89 and 671,736.13 is: 927,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,077.97 : 1,209,534.89 = 671,736.13 : x
  2. Step 2: Convert to fraction form
    876,077.97/1,209,534.89 = 671,736.13/x
  3. Step 3: Cross multiply
    876,077.97x = 1,209,534.89 × 671,736.13
  4. Step 4: Simplify right side
    876,077.97x = 812,488,286,108.58
  5. Step 5: Solve for x
    x = 812,488,286,108.58/876,077.97
  6. Step 6: Final answer
    x = 927,415.50

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1.5x scale

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.