Home / 345,808.20-477,218.94-194,905.20

Finding the Fourth Proportional to 345,808.20, 477,218.94 and 194,905.20

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Solution

The fourth proportional to 345,808.20, 477,218.94 and 194,905.20 is: 268,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,808.20 : 477,218.94 = 194,905.20 : x
  2. Step 2: Convert to fraction form
    345,808.20/477,218.94 = 194,905.20/x
  3. Step 3: Cross multiply
    345,808.20x = 477,218.94 × 194,905.20
  4. Step 4: Simplify right side
    345,808.20x = 93,012,452,944.49
  5. Step 5: Solve for x
    x = 93,012,452,944.49/345,808.20
  6. Step 6: Final answer
    x = 268,971.22

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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.