Home / 347,024.85-478,905.78-191,978.29

Finding the Fourth Proportional to 347,024.85, 478,905.78 and 191,978.29

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Solution

The fourth proportional to 347,024.85, 478,905.78 and 191,978.29 is: 264,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,024.85 : 478,905.78 = 191,978.29 : x
  2. Step 2: Convert to fraction form
    347,024.85/478,905.78 = 191,978.29/x
  3. Step 3: Cross multiply
    347,024.85x = 478,905.78 × 191,978.29
  4. Step 4: Simplify right side
    347,024.85x = 91,939,512,715.52
  5. Step 5: Solve for x
    x = 91,939,512,715.52/347,024.85
  6. Step 6: Final answer
    x = 264,936.39

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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.