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Finding the Fourth Proportional to 652,407,772.60, 978,611,658.90 and 362,170,127.80

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Solution

The fourth proportional to 652,407,772.60, 978,611,658.90 and 362,170,127.80 is: 543,255,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,407,772.60 : 978,611,658.90 = 362,170,127.80 : x
  2. Step 2: Convert to fraction form
    652,407,772.60/978,611,658.90 = 362,170,127.80/x
  3. Step 3: Cross multiply
    652,407,772.60x = 978,611,658.90 × 362,170,127.80
  4. Step 4: Simplify right side
    652,407,772.60x = 354,423,909,570,383,040
  5. Step 5: Solve for x
    x = 354,423,909,570,383,040/652,407,772.60
  6. Step 6: Final answer
    x = 543,255,191.70

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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.