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Finding the Fourth Proportional to 752,185,209.60, 1,128,277,814.40 and 752,185,209.60

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Solution

The fourth proportional to 752,185,209.60, 1,128,277,814.40 and 752,185,209.60 is: 1,128,277,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,185,209.60 : 1,128,277,814.40 = 752,185,209.60 : x
  2. Step 2: Convert to fraction form
    752,185,209.60/1,128,277,814.40 = 752,185,209.60/x
  3. Step 3: Cross multiply
    752,185,209.60x = 1,128,277,814.40 × 752,185,209.60
  4. Step 4: Simplify right side
    752,185,209.60x = 848,673,884,311,494,016
  5. Step 5: Solve for x
    x = 848,673,884,311,494,016/752,185,209.60
  6. Step 6: Final answer
    x = 1,128,277,814.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.