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Finding the Fourth Proportional to 536,947.98, 740,988.72 and 295,234.80

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Solution

The fourth proportional to 536,947.98, 740,988.72 and 295,234.80 is: 407,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,947.98 : 740,988.72 = 295,234.80 : x
  2. Step 2: Convert to fraction form
    536,947.98/740,988.72 = 295,234.80/x
  3. Step 3: Cross multiply
    536,947.98x = 740,988.72 × 295,234.80
  4. Step 4: Simplify right side
    536,947.98x = 218,765,656,551.46
  5. Step 5: Solve for x
    x = 218,765,656,551.46/536,947.98
  6. Step 6: Final answer
    x = 407,424.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.