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Finding the Fourth Proportional to 256,259.01, 353,272.05 and 198,796.95

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Solution

The fourth proportional to 256,259.01, 353,272.05 and 198,796.95 is: 274,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,259.01 : 353,272.05 = 198,796.95 : x
  2. Step 2: Convert to fraction form
    256,259.01/353,272.05 = 198,796.95/x
  3. Step 3: Cross multiply
    256,259.01x = 353,272.05 × 198,796.95
  4. Step 4: Simplify right side
    256,259.01x = 70,229,406,060.25
  5. Step 5: Solve for x
    x = 70,229,406,060.25/256,259.01
  6. Step 6: Final answer
    x = 274,056.34

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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.