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Finding the Fourth Proportional to 360,638.97, 497,681.73 and 197,296.80

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Solution

The fourth proportional to 360,638.97, 497,681.73 and 197,296.80 is: 272,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,638.97 : 497,681.73 = 197,296.80 : x
  2. Step 2: Convert to fraction form
    360,638.97/497,681.73 = 197,296.80/x
  3. Step 3: Cross multiply
    360,638.97x = 497,681.73 × 197,296.80
  4. Step 4: Simplify right side
    360,638.97x = 98,191,012,747.46
  5. Step 5: Solve for x
    x = 98,191,012,747.46/360,638.97
  6. Step 6: Final answer
    x = 272,269.56

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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.