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Finding the Fourth Proportional to 463,661,843.60, 695,492,765.40 and 248,670,995.60

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Solution

The fourth proportional to 463,661,843.60, 695,492,765.40 and 248,670,995.60 is: 373,006,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,661,843.60 : 695,492,765.40 = 248,670,995.60 : x
  2. Step 2: Convert to fraction form
    463,661,843.60/695,492,765.40 = 248,670,995.60/x
  3. Step 3: Cross multiply
    463,661,843.60x = 695,492,765.40 × 248,670,995.60
  4. Step 4: Simplify right side
    463,661,843.60x = 172,948,878,404,615,232
  5. Step 5: Solve for x
    x = 172,948,878,404,615,232/463,661,843.60
  6. Step 6: Final answer
    x = 373,006,493.40

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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.