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Finding the Third Proportional to 417,504 and 913,776

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Solution

The third proportional to 417,504 and 913,776 is: 1,999,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,504 : 913,776 = 913,776 : x
  2. Step 2: Convert to fraction form
    417,504/913,776 = 913,776/x
  3. Step 3: Cross multiply
    417,504x = 913,776 × 913,776
  4. Step 4: Simplify right side
    417,504x = 834,986,578,176
  5. Step 5: Solve for x
    x = 834,986,578,176/417,504
  6. Step 6: Final answer
    x = 1,999,948.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.