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Finding the Fourth Proportional to 1,404,768.97, 1,938,581.17 and 760,189.16

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Solution

The fourth proportional to 1,404,768.97, 1,938,581.17 and 760,189.16 is: 1,049,061.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,768.97 : 1,938,581.17 = 760,189.16 : x
  2. Step 2: Convert to fraction form
    1,404,768.97/1,938,581.17 = 760,189.16/x
  3. Step 3: Cross multiply
    1,404,768.97x = 1,938,581.17 × 760,189.16
  4. Step 4: Simplify right side
    1,404,768.97x = 1,473,688,381,521.21
  5. Step 5: Solve for x
    x = 1,473,688,381,521.21/1,404,768.97
  6. Step 6: Final answer
    x = 1,049,061.03

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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.