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Finding the Third Proportional to 517,434 and 772,959

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Solution

The third proportional to 517,434 and 772,959 is: 1,154,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,434 : 772,959 = 772,959 : x
  2. Step 2: Convert to fraction form
    517,434/772,959 = 772,959/x
  3. Step 3: Cross multiply
    517,434x = 772,959 × 772,959
  4. Step 4: Simplify right side
    517,434x = 597,465,615,681
  5. Step 5: Solve for x
    x = 597,465,615,681/517,434
  6. Step 6: Final answer
    x = 1,154,670.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.