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Finding the Fourth Proportional to 293,642.70, 440,464.05 and 291,569.10

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Solution

The fourth proportional to 293,642.70, 440,464.05 and 291,569.10 is: 437,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,642.70 : 440,464.05 = 291,569.10 : x
  2. Step 2: Convert to fraction form
    293,642.70/440,464.05 = 291,569.10/x
  3. Step 3: Cross multiply
    293,642.70x = 440,464.05 × 291,569.10
  4. Step 4: Simplify right side
    293,642.70x = 128,425,706,640.86
  5. Step 5: Solve for x
    x = 128,425,706,640.86/293,642.70
  6. Step 6: Final answer
    x = 437,353.65

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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.