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Finding the Fourth Proportional to 331,536.16, 497,307.72 and 265,396.74

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Solution

The fourth proportional to 331,536.16, 497,307.72 and 265,396.74 is: 398,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,536.16 : 497,307.72 = 265,396.74 : x
  2. Step 2: Convert to fraction form
    331,536.16/497,307.72 = 265,396.74/x
  3. Step 3: Cross multiply
    331,536.16x = 497,307.72 × 265,396.74
  4. Step 4: Simplify right side
    331,536.16x = 131,983,847,664.83
  5. Step 5: Solve for x
    x = 131,983,847,664.83/331,536.16
  6. Step 6: Final answer
    x = 398,097.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.