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Finding the Third Proportional to 518,830 and 1,117,702

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Solution

The third proportional to 518,830 and 1,117,702 is: 2,407,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,830 : 1,117,702 = 1,117,702 : x
  2. Step 2: Convert to fraction form
    518,830/1,117,702 = 1,117,702/x
  3. Step 3: Cross multiply
    518,830x = 1,117,702 × 1,117,702
  4. Step 4: Simplify right side
    518,830x = 1,249,257,760,804
  5. Step 5: Solve for x
    x = 1,249,257,760,804/518,830
  6. Step 6: Final answer
    x = 2,407,836.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.