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Finding the Fourth Proportional to 867,428.19, 1,197,010.10 and 474,954.03

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Solution

The fourth proportional to 867,428.19, 1,197,010.10 and 474,954.03 is: 655,414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,428.19 : 1,197,010.10 = 474,954.03 : x
  2. Step 2: Convert to fraction form
    867,428.19/1,197,010.10 = 474,954.03/x
  3. Step 3: Cross multiply
    867,428.19x = 1,197,010.10 × 474,954.03
  4. Step 4: Simplify right side
    867,428.19x = 568,524,772,133.09
  5. Step 5: Solve for x
    x = 568,524,772,133.09/867,428.19
  6. Step 6: Final answer
    x = 655,414.22

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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.