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Finding the Fourth Proportional to 1,227,858.62, 1,843,044.78 and 1,013,945.01

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Solution

The fourth proportional to 1,227,858.62, 1,843,044.78 and 1,013,945.01 is: 1,521,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,858.62 : 1,843,044.78 = 1,013,945.01 : x
  2. Step 2: Convert to fraction form
    1,227,858.62/1,843,044.78 = 1,013,945.01/x
  3. Step 3: Cross multiply
    1,227,858.62x = 1,843,044.78 × 1,013,945.01
  4. Step 4: Simplify right side
    1,227,858.62x = 1,868,746,057,887.55
  5. Step 5: Solve for x
    x = 1,868,746,057,887.55/1,227,858.62
  6. Step 6: Final answer
    x = 1,521,955.40

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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.