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Finding the Fourth Proportional to 528,744.70, 729,671.96 and 293,002.52

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Solution

The fourth proportional to 528,744.70, 729,671.96 and 293,002.52 is: 404,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,744.70 : 729,671.96 = 293,002.52 : x
  2. Step 2: Convert to fraction form
    528,744.70/729,671.96 = 293,002.52/x
  3. Step 3: Cross multiply
    528,744.70x = 729,671.96 × 293,002.52
  4. Step 4: Simplify right side
    528,744.70x = 213,795,720,137.49
  5. Step 5: Solve for x
    x = 213,795,720,137.49/528,744.70
  6. Step 6: Final answer
    x = 404,345.84

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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.