Home / 347,025.35-478,906.47-191,978.79

Finding the Fourth Proportional to 347,025.35, 478,906.47 and 191,978.79

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Solution

The fourth proportional to 347,025.35, 478,906.47 and 191,978.79 is: 264,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,025.35 : 478,906.47 = 191,978.79 : x
  2. Step 2: Convert to fraction form
    347,025.35/478,906.47 = 191,978.79/x
  3. Step 3: Cross multiply
    347,025.35x = 478,906.47 × 191,978.79
  4. Step 4: Simplify right side
    347,025.35x = 91,939,884,633.77
  5. Step 5: Solve for x
    x = 91,939,884,633.77/347,025.35
  6. Step 6: Final answer
    x = 264,937.09

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1.5x scale

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.