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Finding the Fourth Proportional to 1,189,569.84, 1,784,357.34 and 836,165.28

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Solution

The fourth proportional to 1,189,569.84, 1,784,357.34 and 836,165.28 is: 1,254,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,569.84 : 1,784,357.34 = 836,165.28 : x
  2. Step 2: Convert to fraction form
    1,189,569.84/1,784,357.34 = 836,165.28/x
  3. Step 3: Cross multiply
    1,189,569.84x = 1,784,357.34 × 836,165.28
  4. Step 4: Simplify right side
    1,189,569.84x = 1,492,017,654,821.16
  5. Step 5: Solve for x
    x = 1,492,017,654,821.16/1,189,569.84
  6. Step 6: Final answer
    x = 1,254,249.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.