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Finding the Fourth Proportional to 521,596.32, 719,820.64 and 292,163.46

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Solution

The fourth proportional to 521,596.32, 719,820.64 and 292,163.46 is: 403,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,596.32 : 719,820.64 = 292,163.46 : x
  2. Step 2: Convert to fraction form
    521,596.32/719,820.64 = 292,163.46/x
  3. Step 3: Cross multiply
    521,596.32x = 719,820.64 × 292,163.46
  4. Step 4: Simplify right side
    521,596.32x = 210,305,288,761.81
  5. Step 5: Solve for x
    x = 210,305,288,761.81/521,596.32
  6. Step 6: Final answer
    x = 403,195.50

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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.