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Finding the Fourth Proportional to 1,888,443.97, 2,605,971.20 and 1,072,645.13

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Solution

The fourth proportional to 1,888,443.97, 2,605,971.20 and 1,072,645.13 is: 1,480,204.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,443.97 : 2,605,971.20 = 1,072,645.13 : x
  2. Step 2: Convert to fraction form
    1,888,443.97/2,605,971.20 = 1,072,645.13/x
  3. Step 3: Cross multiply
    1,888,443.97x = 2,605,971.20 × 1,072,645.13
  4. Step 4: Simplify right side
    1,888,443.97x = 2,795,282,306,252.01
  5. Step 5: Solve for x
    x = 2,795,282,306,252.01/1,888,443.97
  6. Step 6: Final answer
    x = 1,480,204.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.