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Finding the Fourth Proportional to 573,312.36, 791,179.90 and 315,200.48

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Solution

The fourth proportional to 573,312.36, 791,179.90 and 315,200.48 is: 434,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,312.36 : 791,179.90 = 315,200.48 : x
  2. Step 2: Convert to fraction form
    573,312.36/791,179.90 = 315,200.48/x
  3. Step 3: Cross multiply
    573,312.36x = 791,179.90 × 315,200.48
  4. Step 4: Simplify right side
    573,312.36x = 249,380,284,246.35
  5. Step 5: Solve for x
    x = 249,380,284,246.35/573,312.36
  6. Step 6: Final answer
    x = 434,981.52

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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.