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Finding the Fourth Proportional to 529,471.76, 730,733.20 and 314,611.97

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Solution

The fourth proportional to 529,471.76, 730,733.20 and 314,611.97 is: 434,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,471.76 : 730,733.20 = 314,611.97 : x
  2. Step 2: Convert to fraction form
    529,471.76/730,733.20 = 314,611.97/x
  3. Step 3: Cross multiply
    529,471.76x = 730,733.20 × 314,611.97
  4. Step 4: Simplify right side
    529,471.76x = 229,897,407,156.21
  5. Step 5: Solve for x
    x = 229,897,407,156.21/529,471.76
  6. Step 6: Final answer
    x = 434,201.46

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1.5x scale

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.