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Finding the Fourth Proportional to 1,127,643.11, 1,554,642.01 and 895,839.20

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Solution

The fourth proportional to 1,127,643.11, 1,554,642.01 and 895,839.20 is: 1,235,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,643.11 : 1,554,642.01 = 895,839.20 : x
  2. Step 2: Convert to fraction form
    1,127,643.11/1,554,642.01 = 895,839.20/x
  3. Step 3: Cross multiply
    1,127,643.11x = 1,554,642.01 × 895,839.20
  4. Step 4: Simplify right side
    1,127,643.11x = 1,392,709,254,524.79
  5. Step 5: Solve for x
    x = 1,392,709,254,524.79/1,127,643.11
  6. Step 6: Final answer
    x = 1,235,062.09

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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.