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Finding the Fourth Proportional to 489,945.70, 735,043.70 and 237,347.20

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Solution

The fourth proportional to 489,945.70, 735,043.70 and 237,347.20 is: 356,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,945.70 : 735,043.70 = 237,347.20 : x
  2. Step 2: Convert to fraction form
    489,945.70/735,043.70 = 237,347.20/x
  3. Step 3: Cross multiply
    489,945.70x = 735,043.70 × 237,347.20
  4. Step 4: Simplify right side
    489,945.70x = 174,460,564,072.64
  5. Step 5: Solve for x
    x = 174,460,564,072.64/489,945.70
  6. Step 6: Final answer
    x = 356,081.43

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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.