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Finding the Fourth Proportional to 1,045,708, 1,443,078.32 and 568,780

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Solution

The fourth proportional to 1,045,708, 1,443,078.32 and 568,780 is: 784,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,708 : 1,443,078.32 = 568,780 : x
  2. Step 2: Convert to fraction form
    1,045,708/1,443,078.32 = 568,780/x
  3. Step 3: Cross multiply
    1,045,708x = 1,443,078.32 × 568,780
  4. Step 4: Simplify right side
    1,045,708x = 820,794,086,849.60
  5. Step 5: Solve for x
    x = 820,794,086,849.60/1,045,708
  6. Step 6: Final answer
    x = 784,917.10

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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.