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Finding the Fourth Proportional to 352,429.74, 486,330.88 and 199,498.98

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Solution

The fourth proportional to 352,429.74, 486,330.88 and 199,498.98 is: 275,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,429.74 : 486,330.88 = 199,498.98 : x
  2. Step 2: Convert to fraction form
    352,429.74/486,330.88 = 199,498.98/x
  3. Step 3: Cross multiply
    352,429.74x = 486,330.88 × 199,498.98
  4. Step 4: Simplify right side
    352,429.74x = 97,022,514,502.50
  5. Step 5: Solve for x
    x = 97,022,514,502.50/352,429.74
  6. Step 6: Final answer
    x = 275,296.05

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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.