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Finding the Fourth Proportional to 439,642.40, 659,443.01 and 183,369.11

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Solution

The fourth proportional to 439,642.40, 659,443.01 and 183,369.11 is: 275,045.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,642.40 : 659,443.01 = 183,369.11 : x
  2. Step 2: Convert to fraction form
    439,642.40/659,443.01 = 183,369.11/x
  3. Step 3: Cross multiply
    439,642.40x = 659,443.01 × 183,369.11
  4. Step 4: Simplify right side
    439,642.40x = 120,921,473,625.36
  5. Step 5: Solve for x
    x = 120,921,473,625.36/439,642.40
  6. Step 6: Final answer
    x = 275,045.07

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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.