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Finding the Third Proportional to 713,239 and 1,554,421

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Solution

The third proportional to 713,239 and 1,554,421 is: 3,387,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,239 : 1,554,421 = 1,554,421 : x
  2. Step 2: Convert to fraction form
    713,239/1,554,421 = 1,554,421/x
  3. Step 3: Cross multiply
    713,239x = 1,554,421 × 1,554,421
  4. Step 4: Simplify right side
    713,239x = 2,416,224,645,241
  5. Step 5: Solve for x
    x = 2,416,224,645,241/713,239
  6. Step 6: Final answer
    x = 3,387,678.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.