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Finding the Fourth Proportional to 424,926.80, 636,709.80 and 224,986.40

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Solution

The fourth proportional to 424,926.80, 636,709.80 and 224,986.40 is: 337,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,926.80 : 636,709.80 = 224,986.40 : x
  2. Step 2: Convert to fraction form
    424,926.80/636,709.80 = 224,986.40/x
  3. Step 3: Cross multiply
    424,926.80x = 636,709.80 × 224,986.40
  4. Step 4: Simplify right side
    424,926.80x = 143,251,045,746.72
  5. Step 5: Solve for x
    x = 143,251,045,746.72/424,926.80
  6. Step 6: Final answer
    x = 337,119.35

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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.