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Finding the Fourth Proportional to 448,423.86, 672,633.36 and 192,218.70

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Solution

The fourth proportional to 448,423.86, 672,633.36 and 192,218.70 is: 288,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,423.86 : 672,633.36 = 192,218.70 : x
  2. Step 2: Convert to fraction form
    448,423.86/672,633.36 = 192,218.70/x
  3. Step 3: Cross multiply
    448,423.86x = 672,633.36 × 192,218.70
  4. Step 4: Simplify right side
    448,423.86x = 129,292,710,035.83
  5. Step 5: Solve for x
    x = 129,292,710,035.83/448,423.86
  6. Step 6: Final answer
    x = 288,327.01

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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.