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Finding the Fourth Proportional to 571,264.58, 788,354.97 and 313,124.31

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Solution

The fourth proportional to 571,264.58, 788,354.97 and 313,124.31 is: 432,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,264.58 : 788,354.97 = 313,124.31 : x
  2. Step 2: Convert to fraction form
    571,264.58/788,354.97 = 313,124.31/x
  3. Step 3: Cross multiply
    571,264.58x = 788,354.97 × 313,124.31
  4. Step 4: Simplify right side
    571,264.58x = 246,853,106,016.32
  5. Step 5: Solve for x
    x = 246,853,106,016.32/571,264.58
  6. Step 6: Final answer
    x = 432,116.95

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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.