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Finding the Third Proportional to 330,571,442 and 720,664,360

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Solution

The third proportional to 330,571,442 and 720,664,360 is: 1,571,088,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,571,442 : 720,664,360 = 720,664,360 : x
  2. Step 2: Convert to fraction form
    330,571,442/720,664,360 = 720,664,360/x
  3. Step 3: Cross multiply
    330,571,442x = 720,664,360 × 720,664,360
  4. Step 4: Simplify right side
    330,571,442x = 519,357,119,774,209,600
  5. Step 5: Solve for x
    x = 519,357,119,774,209,600/330,571,442
  6. Step 6: Final answer
    x = 1,571,088,889.69

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.