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Finding the Fourth Proportional to 966,216.65, 1,333,896.64 and 744,970.72

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Solution

The fourth proportional to 966,216.65, 1,333,896.64 and 744,970.72 is: 1,028,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,216.65 : 1,333,896.64 = 744,970.72 : x
  2. Step 2: Convert to fraction form
    966,216.65/1,333,896.64 = 744,970.72/x
  3. Step 3: Cross multiply
    966,216.65x = 1,333,896.64 × 744,970.72
  4. Step 4: Simplify right side
    966,216.65x = 993,713,944,767.39
  5. Step 5: Solve for x
    x = 993,713,944,767.39/966,216.65
  6. Step 6: Final answer
    x = 1,028,458.72

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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.