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Finding the Third Proportional to 908,803 and 1,911,617

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Solution

The third proportional to 908,803 and 1,911,617 is: 4,020,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,803 : 1,911,617 = 1,911,617 : x
  2. Step 2: Convert to fraction form
    908,803/1,911,617 = 1,911,617/x
  3. Step 3: Cross multiply
    908,803x = 1,911,617 × 1,911,617
  4. Step 4: Simplify right side
    908,803x = 3,654,279,554,689
  5. Step 5: Solve for x
    x = 3,654,279,554,689/908,803
  6. Step 6: Final answer
    x = 4,020,980.95

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.