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Finding the Third Proportional to 619,994 and 958,128

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Solution

The third proportional to 619,994 and 958,128 is: 1,480,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,994 : 958,128 = 958,128 : x
  2. Step 2: Convert to fraction form
    619,994/958,128 = 958,128/x
  3. Step 3: Cross multiply
    619,994x = 958,128 × 958,128
  4. Step 4: Simplify right side
    619,994x = 918,009,264,384
  5. Step 5: Solve for x
    x = 918,009,264,384/619,994
  6. Step 6: Final answer
    x = 1,480,674.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.