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Finding the Fourth Proportional to 262,058.96, 392,881.08 and 261,736.40

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Solution

The fourth proportional to 262,058.96, 392,881.08 and 261,736.40 is: 392,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,058.96 : 392,881.08 = 261,736.40 : x
  2. Step 2: Convert to fraction form
    262,058.96/392,881.08 = 261,736.40/x
  3. Step 3: Cross multiply
    262,058.96x = 392,881.08 × 261,736.40
  4. Step 4: Simplify right side
    262,058.96x = 102,831,279,507.31
  5. Step 5: Solve for x
    x = 102,831,279,507.31/262,058.96
  6. Step 6: Final answer
    x = 392,397.50

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1.5x scale

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.