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Finding the Fourth Proportional to 331,878,512.60, 463,554,963.40 and 331,878,512.60

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Solution

The fourth proportional to 331,878,512.60, 463,554,963.40 and 331,878,512.60 is: 463,554,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,878,512.60 : 463,554,963.40 = 331,878,512.60 : x
  2. Step 2: Convert to fraction form
    331,878,512.60/463,554,963.40 = 331,878,512.60/x
  3. Step 3: Cross multiply
    331,878,512.60x = 463,554,963.40 × 331,878,512.60
  4. Step 4: Simplify right side
    331,878,512.60x = 153,843,931,761,539,456
  5. Step 5: Solve for x
    x = 153,843,931,761,539,456/331,878,512.60
  6. Step 6: Final answer
    x = 463,554,963.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.