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Finding the Fourth Proportional to 1,718,721.44, 2,371,755.12 and 954,821.60

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Solution

The fourth proportional to 1,718,721.44, 2,371,755.12 and 954,821.60 is: 1,317,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,721.44 : 2,371,755.12 = 954,821.60 : x
  2. Step 2: Convert to fraction form
    1,718,721.44/2,371,755.12 = 954,821.60/x
  3. Step 3: Cross multiply
    1,718,721.44x = 2,371,755.12 × 954,821.60
  4. Step 4: Simplify right side
    1,718,721.44x = 2,264,603,018,486.59
  5. Step 5: Solve for x
    x = 2,264,603,018,486.59/1,718,721.44
  6. Step 6: Final answer
    x = 1,317,609.11

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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.