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Finding the Fourth Proportional to 1,029,314.70, 1,420,992 and 799,356.06

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Solution

The fourth proportional to 1,029,314.70, 1,420,992 and 799,356.06 is: 1,103,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,314.70 : 1,420,992 = 799,356.06 : x
  2. Step 2: Convert to fraction form
    1,029,314.70/1,420,992 = 799,356.06/x
  3. Step 3: Cross multiply
    1,029,314.70x = 1,420,992 × 799,356.06
  4. Step 4: Simplify right side
    1,029,314.70x = 1,135,878,566,411.52
  5. Step 5: Solve for x
    x = 1,135,878,566,411.52/1,029,314.70
  6. Step 6: Final answer
    x = 1,103,528.95

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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.