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Finding the Fourth Proportional to 702,147.96, 968,962.86 and 379,858.32

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Solution

The fourth proportional to 702,147.96, 968,962.86 and 379,858.32 is: 524,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,147.96 : 968,962.86 = 379,858.32 : x
  2. Step 2: Convert to fraction form
    702,147.96/968,962.86 = 379,858.32/x
  3. Step 3: Cross multiply
    702,147.96x = 968,962.86 × 379,858.32
  4. Step 4: Simplify right side
    702,147.96x = 368,068,604,142.00
  5. Step 5: Solve for x
    x = 368,068,604,142.00/702,147.96
  6. Step 6: Final answer
    x = 524,203.76

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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.