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Finding the Fourth Proportional to 865,262.16, 1,296,082.89 and 695,866.86

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Solution

The fourth proportional to 865,262.16, 1,296,082.89 and 695,866.86 is: 1,042,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,262.16 : 1,296,082.89 = 695,866.86 : x
  2. Step 2: Convert to fraction form
    865,262.16/1,296,082.89 = 695,866.86/x
  3. Step 3: Cross multiply
    865,262.16x = 1,296,082.89 × 695,866.86
  4. Step 4: Simplify right side
    865,262.16x = 901,901,130,964.03
  5. Step 5: Solve for x
    x = 901,901,130,964.03/865,262.16
  6. Step 6: Final answer
    x = 1,042,344.36

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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.