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Finding the Fourth Proportional to 532,501.70, 734,847.49 and 290,783.52

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Solution

The fourth proportional to 532,501.70, 734,847.49 and 290,783.52 is: 401,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,501.70 : 734,847.49 = 290,783.52 : x
  2. Step 2: Convert to fraction form
    532,501.70/734,847.49 = 290,783.52/x
  3. Step 3: Cross multiply
    532,501.70x = 734,847.49 × 290,783.52
  4. Step 4: Simplify right side
    532,501.70x = 213,681,540,168.84
  5. Step 5: Solve for x
    x = 213,681,540,168.84/532,501.70
  6. Step 6: Final answer
    x = 401,278.61

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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.