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Finding the Fourth Proportional to 440,828.70, 661,264.65 and 230,876.70

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Solution

The fourth proportional to 440,828.70, 661,264.65 and 230,876.70 is: 346,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,828.70 : 661,264.65 = 230,876.70 : x
  2. Step 2: Convert to fraction form
    440,828.70/661,264.65 = 230,876.70/x
  3. Step 3: Cross multiply
    440,828.70x = 661,264.65 × 230,876.70
  4. Step 4: Simplify right side
    440,828.70x = 152,670,600,218.66
  5. Step 5: Solve for x
    x = 152,670,600,218.66/440,828.70
  6. Step 6: Final answer
    x = 346,326.36

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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.