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Finding the Fourth Proportional to 963,722, 1,329,955.56 and 561,339.92

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Solution

The fourth proportional to 963,722, 1,329,955.56 and 561,339.92 is: 774,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,722 : 1,329,955.56 = 561,339.92 : x
  2. Step 2: Convert to fraction form
    963,722/1,329,955.56 = 561,339.92/x
  3. Step 3: Cross multiply
    963,722x = 1,329,955.56 × 561,339.92
  4. Step 4: Simplify right side
    963,722x = 746,557,147,653.96
  5. Step 5: Solve for x
    x = 746,557,147,653.96/963,722
  6. Step 6: Final answer
    x = 774,660.27

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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.