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Finding the Fourth Proportional to 536,840.72, 740,838.08 and 295,138.56

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Solution

The fourth proportional to 536,840.72, 740,838.08 and 295,138.56 is: 407,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,840.72 : 740,838.08 = 295,138.56 : x
  2. Step 2: Convert to fraction form
    536,840.72/740,838.08 = 295,138.56/x
  3. Step 3: Cross multiply
    536,840.72x = 740,838.08 × 295,138.56
  4. Step 4: Simplify right side
    536,840.72x = 218,649,884,124.37
  5. Step 5: Solve for x
    x = 218,649,884,124.37/536,840.72
  6. Step 6: Final answer
    x = 407,290.05

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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.