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Finding the Fourth Proportional to 573,091.63, 790,884.23 and 314,963.87

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Solution

The fourth proportional to 573,091.63, 790,884.23 and 314,963.87 is: 434,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,091.63 : 790,884.23 = 314,963.87 : x
  2. Step 2: Convert to fraction form
    573,091.63/790,884.23 = 314,963.87/x
  3. Step 3: Cross multiply
    573,091.63x = 790,884.23 × 314,963.87
  4. Step 4: Simplify right side
    573,091.63x = 249,099,955,383.73
  5. Step 5: Solve for x
    x = 249,099,955,383.73/573,091.63
  6. Step 6: Final answer
    x = 434,659.91

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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.