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Finding the Fourth Proportional to 868,356.62, 1,300,960.22 and 849,460.94

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Solution

The fourth proportional to 868,356.62, 1,300,960.22 and 849,460.94 is: 1,272,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,356.62 : 1,300,960.22 = 849,460.94 : x
  2. Step 2: Convert to fraction form
    868,356.62/1,300,960.22 = 849,460.94/x
  3. Step 3: Cross multiply
    868,356.62x = 1,300,960.22 × 849,460.94
  4. Step 4: Simplify right side
    868,356.62x = 1,105,114,891,383.81
  5. Step 5: Solve for x
    x = 1,105,114,891,383.81/868,356.62
  6. Step 6: Final answer
    x = 1,272,650.97

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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.