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Finding the Third Proportional to 1,053,979.13 and 1,578,079.50

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Solution

The third proportional to 1,053,979.13 and 1,578,079.50 is: 2,362,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,979.13 : 1,578,079.50 = 1,578,079.50 : x
  2. Step 2: Convert to fraction form
    1,053,979.13/1,578,079.50 = 1,578,079.50/x
  3. Step 3: Cross multiply
    1,053,979.13x = 1,578,079.50 × 1,578,079.50
  4. Step 4: Simplify right side
    1,053,979.13x = 2,490,334,908,320.25
  5. Step 5: Solve for x
    x = 2,490,334,908,320.25/1,053,979.13
  6. Step 6: Final answer
    x = 2,362,793.39

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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.