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Finding the Fourth Proportional to 701,772.64, 968,387.76 and 395,832.16

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Solution

The fourth proportional to 701,772.64, 968,387.76 and 395,832.16 is: 546,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,772.64 : 968,387.76 = 395,832.16 : x
  2. Step 2: Convert to fraction form
    701,772.64/968,387.76 = 395,832.16/x
  3. Step 3: Cross multiply
    701,772.64x = 968,387.76 × 395,832.16
  4. Step 4: Simplify right side
    701,772.64x = 383,319,018,758.36
  5. Step 5: Solve for x
    x = 383,319,018,758.36/701,772.64
  6. Step 6: Final answer
    x = 546,215.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.