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Finding the Fourth Proportional to 1,137,463.84, 1,569,738.84 and 672,716.11

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Solution

The fourth proportional to 1,137,463.84, 1,569,738.84 and 672,716.11 is: 928,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,463.84 : 1,569,738.84 = 672,716.11 : x
  2. Step 2: Convert to fraction form
    1,137,463.84/1,569,738.84 = 672,716.11/x
  3. Step 3: Cross multiply
    1,137,463.84x = 1,569,738.84 × 672,716.11
  4. Step 4: Simplify right side
    1,137,463.84x = 1,055,988,606,160.71
  5. Step 5: Solve for x
    x = 1,055,988,606,160.71/1,137,463.84
  6. Step 6: Final answer
    x = 928,371.14

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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.