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Finding the Third Proportional to 865,510.31 and 1,890,329.91

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Solution

The third proportional to 865,510.31 and 1,890,329.91 is: 4,128,601.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,510.31 : 1,890,329.91 = 1,890,329.91 : x
  2. Step 2: Convert to fraction form
    865,510.31/1,890,329.91 = 1,890,329.91/x
  3. Step 3: Cross multiply
    865,510.31x = 1,890,329.91 × 1,890,329.91
  4. Step 4: Simplify right side
    865,510.31x = 3,573,347,154,463.13
  5. Step 5: Solve for x
    x = 3,573,347,154,463.13/865,510.31
  6. Step 6: Final answer
    x = 4,128,601.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.