Home / 396,461.17-547,570.47-261,100.18

Finding the Fourth Proportional to 396,461.17, 547,570.47 and 261,100.18

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Solution

The fourth proportional to 396,461.17, 547,570.47 and 261,100.18 is: 360,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,461.17 : 547,570.47 = 261,100.18 : x
  2. Step 2: Convert to fraction form
    396,461.17/547,570.47 = 261,100.18/x
  3. Step 3: Cross multiply
    396,461.17x = 547,570.47 × 261,100.18
  4. Step 4: Simplify right side
    396,461.17x = 142,970,748,279.69
  5. Step 5: Solve for x
    x = 142,970,748,279.69/396,461.17
  6. Step 6: Final answer
    x = 360,617.28

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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.