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Finding the Fourth Proportional to 424,133.40, 636,200.10 and 235,176.60

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Solution

The fourth proportional to 424,133.40, 636,200.10 and 235,176.60 is: 352,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,133.40 : 636,200.10 = 235,176.60 : x
  2. Step 2: Convert to fraction form
    424,133.40/636,200.10 = 235,176.60/x
  3. Step 3: Cross multiply
    424,133.40x = 636,200.10 × 235,176.60
  4. Step 4: Simplify right side
    424,133.40x = 149,619,376,437.66
  5. Step 5: Solve for x
    x = 149,619,376,437.66/424,133.40
  6. Step 6: Final answer
    x = 352,764.90

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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.