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Finding the Fourth Proportional to 293,887.10, 440,441.85 and 260,450.30

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Solution

The fourth proportional to 293,887.10, 440,441.85 and 260,450.30 is: 390,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,887.10 : 440,441.85 = 260,450.30 : x
  2. Step 2: Convert to fraction form
    293,887.10/440,441.85 = 260,450.30/x
  3. Step 3: Cross multiply
    293,887.10x = 440,441.85 × 260,450.30
  4. Step 4: Simplify right side
    293,887.10x = 114,713,211,965.06
  5. Step 5: Solve for x
    x = 114,713,211,965.06/293,887.10
  6. Step 6: Final answer
    x = 390,330.89

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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.