Home / 876,160.31-1,209,116.97-513,845.49

Finding the Fourth Proportional to 876,160.31, 1,209,116.97 and 513,845.49

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Solution

The fourth proportional to 876,160.31, 1,209,116.97 and 513,845.49 is: 709,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,160.31 : 1,209,116.97 = 513,845.49 : x
  2. Step 2: Convert to fraction form
    876,160.31/1,209,116.97 = 513,845.49/x
  3. Step 3: Cross multiply
    876,160.31x = 1,209,116.97 × 513,845.49
  4. Step 4: Simplify right side
    876,160.31x = 621,299,301,916.97
  5. Step 5: Solve for x
    x = 621,299,301,916.97/876,160.31
  6. Step 6: Final answer
    x = 709,116.01

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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.