Home / 861,962.31-1,190,260.17-540,225.45

Finding the Fourth Proportional to 861,962.31, 1,190,260.17 and 540,225.45

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Solution

The fourth proportional to 861,962.31, 1,190,260.17 and 540,225.45 is: 745,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,962.31 : 1,190,260.17 = 540,225.45 : x
  2. Step 2: Convert to fraction form
    861,962.31/1,190,260.17 = 540,225.45/x
  3. Step 3: Cross multiply
    861,962.31x = 1,190,260.17 × 540,225.45
  4. Step 4: Simplify right side
    861,962.31x = 643,008,835,955.33
  5. Step 5: Solve for x
    x = 643,008,835,955.33/861,962.31
  6. Step 6: Final answer
    x = 745,982.54

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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.