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Finding the Fourth Proportional to 367,786.07, 507,771.22 and 291,612.86

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Solution

The fourth proportional to 367,786.07, 507,771.22 and 291,612.86 is: 402,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,786.07 : 507,771.22 = 291,612.86 : x
  2. Step 2: Convert to fraction form
    367,786.07/507,771.22 = 291,612.86/x
  3. Step 3: Cross multiply
    367,786.07x = 507,771.22 × 291,612.86
  4. Step 4: Simplify right side
    367,786.07x = 148,072,617,865.77
  5. Step 5: Solve for x
    x = 148,072,617,865.77/367,786.07
  6. Step 6: Final answer
    x = 402,605.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.