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Finding the Third Proportional to 398,383,411.22 and 624,868,041.52

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Solution

The third proportional to 398,383,411.22 and 624,868,041.52 is: 980,111,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,383,411.22 : 624,868,041.52 = 624,868,041.52 : x
  2. Step 2: Convert to fraction form
    398,383,411.22/624,868,041.52 = 624,868,041.52/x
  3. Step 3: Cross multiply
    398,383,411.22x = 624,868,041.52 × 624,868,041.52
  4. Step 4: Simplify right side
    398,383,411.22x = 390,460,069,307,541,568
  5. Step 5: Solve for x
    x = 390,460,069,307,541,568/398,383,411.22
  6. Step 6: Final answer
    x = 980,111,265.46

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.