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Finding the Fourth Proportional to 1,283,383.04, 1,926,966.94 and 715,872.94

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Solution

The fourth proportional to 1,283,383.04, 1,926,966.94 and 715,872.94 is: 1,074,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,383.04 : 1,926,966.94 = 715,872.94 : x
  2. Step 2: Convert to fraction form
    1,283,383.04/1,926,966.94 = 715,872.94/x
  3. Step 3: Cross multiply
    1,283,383.04x = 1,926,966.94 × 715,872.94
  4. Step 4: Simplify right side
    1,283,383.04x = 1,379,463,488,620.60
  5. Step 5: Solve for x
    x = 1,379,463,488,620.60/1,283,383.04
  6. Step 6: Final answer
    x = 1,074,864.98

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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.