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Finding the Third Proportional to 990,728 and 1,574,486

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Solution

The third proportional to 990,728 and 1,574,486 is: 2,502,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,728 : 1,574,486 = 1,574,486 : x
  2. Step 2: Convert to fraction form
    990,728/1,574,486 = 1,574,486/x
  3. Step 3: Cross multiply
    990,728x = 1,574,486 × 1,574,486
  4. Step 4: Simplify right side
    990,728x = 2,479,006,164,196
  5. Step 5: Solve for x
    x = 2,479,006,164,196/990,728
  6. Step 6: Final answer
    x = 2,502,206.62

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.