Home / 345,554.64-518,402.37-195,861.78

Finding the Fourth Proportional to 345,554.64, 518,402.37 and 195,861.78

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Solution

The fourth proportional to 345,554.64, 518,402.37 and 195,861.78 is: 293,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,554.64 : 518,402.37 = 195,861.78 : x
  2. Step 2: Convert to fraction form
    345,554.64/518,402.37 = 195,861.78/x
  3. Step 3: Cross multiply
    345,554.64x = 518,402.37 × 195,861.78
  4. Step 4: Simplify right side
    345,554.64x = 101,535,210,944.42
  5. Step 5: Solve for x
    x = 101,535,210,944.42/345,554.64
  6. Step 6: Final answer
    x = 293,832.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.