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Finding the Fourth Proportional to 448,674.80, 672,781.35 and 133,090.70

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Solution

The fourth proportional to 448,674.80, 672,781.35 and 133,090.70 is: 199,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,674.80 : 672,781.35 = 133,090.70 : x
  2. Step 2: Convert to fraction form
    448,674.80/672,781.35 = 133,090.70/x
  3. Step 3: Cross multiply
    448,674.80x = 672,781.35 × 133,090.70
  4. Step 4: Simplify right side
    448,674.80x = 89,540,940,818.45
  5. Step 5: Solve for x
    x = 89,540,940,818.45/448,674.80
  6. Step 6: Final answer
    x = 199,567.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.