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Finding the Fourth Proportional to 484,652,037.80, 726,978,056.70 and 291,160,274.60

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Solution

The fourth proportional to 484,652,037.80, 726,978,056.70 and 291,160,274.60 is: 436,740,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,652,037.80 : 726,978,056.70 = 291,160,274.60 : x
  2. Step 2: Convert to fraction form
    484,652,037.80/726,978,056.70 = 291,160,274.60/x
  3. Step 3: Cross multiply
    484,652,037.80x = 726,978,056.70 × 291,160,274.60
  4. Step 4: Simplify right side
    484,652,037.80x = 211,667,130,616,946,400
  5. Step 5: Solve for x
    x = 211,667,130,616,946,400/484,652,037.80
  6. Step 6: Final answer
    x = 436,740,411.90

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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.