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Finding the Third Proportional to 439,090 and 912,628

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Solution

The third proportional to 439,090 and 912,628 is: 1,896,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,090 : 912,628 = 912,628 : x
  2. Step 2: Convert to fraction form
    439,090/912,628 = 912,628/x
  3. Step 3: Cross multiply
    439,090x = 912,628 × 912,628
  4. Step 4: Simplify right side
    439,090x = 832,889,866,384
  5. Step 5: Solve for x
    x = 832,889,866,384/439,090
  6. Step 6: Final answer
    x = 1,896,854.55

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.