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Finding the Third Proportional to 877,392 and 1,905,120

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Solution

The third proportional to 877,392 and 1,905,120 is: 4,136,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,392 : 1,905,120 = 1,905,120 : x
  2. Step 2: Convert to fraction form
    877,392/1,905,120 = 1,905,120/x
  3. Step 3: Cross multiply
    877,392x = 1,905,120 × 1,905,120
  4. Step 4: Simplify right side
    877,392x = 3,629,482,214,400
  5. Step 5: Solve for x
    x = 3,629,482,214,400/877,392
  6. Step 6: Final answer
    x = 4,136,671.20

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.