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Finding the Fourth Proportional to 573,276.40, 791,131.52 and 315,164.22

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Solution

The fourth proportional to 573,276.40, 791,131.52 and 315,164.22 is: 434,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,276.40 : 791,131.52 = 315,164.22 : x
  2. Step 2: Convert to fraction form
    573,276.40/791,131.52 = 315,164.22/x
  3. Step 3: Cross multiply
    573,276.40x = 791,131.52 × 315,164.22
  4. Step 4: Simplify right side
    573,276.40x = 249,336,348,418.21
  5. Step 5: Solve for x
    x = 249,336,348,418.21/573,276.40
  6. Step 6: Final answer
    x = 434,932.17

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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.