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Finding the Fourth Proportional to 230,573.79, 343,568.58 and 205,420.56

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Solution

The fourth proportional to 230,573.79, 343,568.58 and 205,420.56 is: 306,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,573.79 : 343,568.58 = 205,420.56 : x
  2. Step 2: Convert to fraction form
    230,573.79/343,568.58 = 205,420.56/x
  3. Step 3: Cross multiply
    230,573.79x = 343,568.58 × 205,420.56
  4. Step 4: Simplify right side
    230,573.79x = 70,576,050,102.00
  5. Step 5: Solve for x
    x = 70,576,050,102.00/230,573.79
  6. Step 6: Final answer
    x = 306,088.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.