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Finding the Fourth Proportional to 448,315.88, 672,342.60 and 369,233.96

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Solution

The fourth proportional to 448,315.88, 672,342.60 and 369,233.96 is: 553,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,315.88 : 672,342.60 = 369,233.96 : x
  2. Step 2: Convert to fraction form
    448,315.88/672,342.60 = 369,233.96/x
  3. Step 3: Cross multiply
    448,315.88x = 672,342.60 × 369,233.96
  4. Step 4: Simplify right side
    448,315.88x = 248,251,720,674.70
  5. Step 5: Solve for x
    x = 248,251,720,674.70/448,315.88
  6. Step 6: Final answer
    x = 553,742.87

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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.