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Finding the Fourth Proportional to 652,603,639.20, 978,905,458.80 and 598,184,080.80

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Solution

The fourth proportional to 652,603,639.20, 978,905,458.80 and 598,184,080.80 is: 897,276,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,603,639.20 : 978,905,458.80 = 598,184,080.80 : x
  2. Step 2: Convert to fraction form
    652,603,639.20/978,905,458.80 = 598,184,080.80/x
  3. Step 3: Cross multiply
    652,603,639.20x = 978,905,458.80 × 598,184,080.80
  4. Step 4: Simplify right side
    652,603,639.20x = 585,565,662,062,380,160
  5. Step 5: Solve for x
    x = 585,565,662,062,380,160/652,603,639.20
  6. Step 6: Final answer
    x = 897,276,121.20

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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.