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Finding the Fourth Proportional to 1,300,974.90, 1,795,366.62 and 712,264.52

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Solution

The fourth proportional to 1,300,974.90, 1,795,366.62 and 712,264.52 is: 982,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,974.90 : 1,795,366.62 = 712,264.52 : x
  2. Step 2: Convert to fraction form
    1,300,974.90/1,795,366.62 = 712,264.52/x
  3. Step 3: Cross multiply
    1,300,974.90x = 1,795,366.62 × 712,264.52
  4. Step 4: Simplify right side
    1,300,974.90x = 1,278,775,943,818.32
  5. Step 5: Solve for x
    x = 1,278,775,943,818.32/1,300,974.90
  6. Step 6: Final answer
    x = 982,936.68

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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.