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Finding the Fourth Proportional to 360,666.48, 497,715.44 and 199,508.88

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Solution

The fourth proportional to 360,666.48, 497,715.44 and 199,508.88 is: 275,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,666.48 : 497,715.44 = 199,508.88 : x
  2. Step 2: Convert to fraction form
    360,666.48/497,715.44 = 199,508.88/x
  3. Step 3: Cross multiply
    360,666.48x = 497,715.44 × 199,508.88
  4. Step 4: Simplify right side
    360,666.48x = 99,298,649,993.11
  5. Step 5: Solve for x
    x = 99,298,649,993.11/360,666.48
  6. Step 6: Final answer
    x = 275,319.87

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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.