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Finding the Fourth Proportional to 702,386.40, 1,053,472.68 and 229,071

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Solution

The fourth proportional to 702,386.40, 1,053,472.68 and 229,071 is: 343,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,386.40 : 1,053,472.68 = 229,071 : x
  2. Step 2: Convert to fraction form
    702,386.40/1,053,472.68 = 229,071/x
  3. Step 3: Cross multiply
    702,386.40x = 1,053,472.68 × 229,071
  4. Step 4: Simplify right side
    702,386.40x = 241,320,040,280.28
  5. Step 5: Solve for x
    x = 241,320,040,280.28/702,386.40
  6. Step 6: Final answer
    x = 343,571.63

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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.