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Finding the Third Proportional to 1,384,602.75 and 2,990,641.50

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Solution

The third proportional to 1,384,602.75 and 2,990,641.50 is: 6,459,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,602.75 : 2,990,641.50 = 2,990,641.50 : x
  2. Step 2: Convert to fraction form
    1,384,602.75/2,990,641.50 = 2,990,641.50/x
  3. Step 3: Cross multiply
    1,384,602.75x = 2,990,641.50 × 2,990,641.50
  4. Step 4: Simplify right side
    1,384,602.75x = 8,943,936,581,522.25
  5. Step 5: Solve for x
    x = 8,943,936,581,522.25/1,384,602.75
  6. Step 6: Final answer
    x = 6,459,568.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.