Home / 373,201.06-515,018.34-212,109.60

Finding the Fourth Proportional to 373,201.06, 515,018.34 and 212,109.60

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Solution

The fourth proportional to 373,201.06, 515,018.34 and 212,109.60 is: 292,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,201.06 : 515,018.34 = 212,109.60 : x
  2. Step 2: Convert to fraction form
    373,201.06/515,018.34 = 212,109.60/x
  3. Step 3: Cross multiply
    373,201.06x = 515,018.34 × 212,109.60
  4. Step 4: Simplify right side
    373,201.06x = 109,240,334,090.06
  5. Step 5: Solve for x
    x = 109,240,334,090.06/373,201.06
  6. Step 6: Final answer
    x = 292,711.75

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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.