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Finding the Fourth Proportional to 557,640.58, 836,479.05 and 265,457.00

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Solution

The fourth proportional to 557,640.58, 836,479.05 and 265,457.00 is: 398,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,640.58 : 836,479.05 = 265,457.00 : x
  2. Step 2: Convert to fraction form
    557,640.58/836,479.05 = 265,457.00/x
  3. Step 3: Cross multiply
    557,640.58x = 836,479.05 × 265,457.00
  4. Step 4: Simplify right side
    557,640.58x = 222,049,217,059.59
  5. Step 5: Solve for x
    x = 222,049,217,059.59/557,640.58
  6. Step 6: Final answer
    x = 398,194.15

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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.