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Finding the Fourth Proportional to 547,059.81, 819,899.45 and 277,255.74

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Solution

The fourth proportional to 547,059.81, 819,899.45 and 277,255.74 is: 415,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,059.81 : 819,899.45 = 277,255.74 : x
  2. Step 2: Convert to fraction form
    547,059.81/819,899.45 = 277,255.74/x
  3. Step 3: Cross multiply
    547,059.81x = 819,899.45 × 277,255.74
  4. Step 4: Simplify right side
    547,059.81x = 227,321,827,349.06
  5. Step 5: Solve for x
    x = 227,321,827,349.06/547,059.81
  6. Step 6: Final answer
    x = 415,533.77

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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.