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Finding the Fourth Proportional to 541,302.55, 811,945.32 and 186,319.64

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Solution

The fourth proportional to 541,302.55, 811,945.32 and 186,319.64 is: 279,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,302.55 : 811,945.32 = 186,319.64 : x
  2. Step 2: Convert to fraction form
    541,302.55/811,945.32 = 186,319.64/x
  3. Step 3: Cross multiply
    541,302.55x = 811,945.32 × 186,319.64
  4. Step 4: Simplify right side
    541,302.55x = 151,281,361,053.25
  5. Step 5: Solve for x
    x = 151,281,361,053.25/541,302.55
  6. Step 6: Final answer
    x = 279,476.54

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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.