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Finding the Fourth Proportional to 729,029.90, 1,018,279.90 and 729,029.90

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Solution

The fourth proportional to 729,029.90, 1,018,279.90 and 729,029.90 is: 1,018,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,029.90 : 1,018,279.90 = 729,029.90 : x
  2. Step 2: Convert to fraction form
    729,029.90/1,018,279.90 = 729,029.90/x
  3. Step 3: Cross multiply
    729,029.90x = 1,018,279.90 × 729,029.90
  4. Step 4: Simplify right side
    729,029.90x = 742,356,493,669.01
  5. Step 5: Solve for x
    x = 742,356,493,669.01/729,029.90
  6. Step 6: Final answer
    x = 1,018,279.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.