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Finding the Fourth Proportional to 265,315.16, 397,659.27 and 262,355.42

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Solution

The fourth proportional to 265,315.16, 397,659.27 and 262,355.42 is: 393,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,315.16 : 397,659.27 = 262,355.42 : x
  2. Step 2: Convert to fraction form
    265,315.16/397,659.27 = 262,355.42/x
  3. Step 3: Cross multiply
    265,315.16x = 397,659.27 × 262,355.42
  4. Step 4: Simplify right side
    265,315.16x = 104,328,066,775.72
  5. Step 5: Solve for x
    x = 104,328,066,775.72/265,315.16
  6. Step 6: Final answer
    x = 393,223.16

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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.