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Finding the Fourth Proportional to 360,645.98, 497,691.38 and 197,303.80

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Solution

The fourth proportional to 360,645.98, 497,691.38 and 197,303.80 is: 272,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,645.98 : 497,691.38 = 197,303.80 : x
  2. Step 2: Convert to fraction form
    360,645.98/497,691.38 = 197,303.80/x
  3. Step 3: Cross multiply
    360,645.98x = 497,691.38 × 197,303.80
  4. Step 4: Simplify right side
    360,645.98x = 98,196,400,501.24
  5. Step 5: Solve for x
    x = 98,196,400,501.24/360,645.98
  6. Step 6: Final answer
    x = 272,279.20

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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.