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Finding the Third Proportional to 334,920 and 722,316

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Solution

The third proportional to 334,920 and 722,316 is: 1,557,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,920 : 722,316 = 722,316 : x
  2. Step 2: Convert to fraction form
    334,920/722,316 = 722,316/x
  3. Step 3: Cross multiply
    334,920x = 722,316 × 722,316
  4. Step 4: Simplify right side
    334,920x = 521,740,403,856
  5. Step 5: Solve for x
    x = 521,740,403,856/334,920
  6. Step 6: Final answer
    x = 1,557,806.05

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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.