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Finding the Fourth Proportional to 343,655.88, 474,247.80 and 190,694.67

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Solution

The fourth proportional to 343,655.88, 474,247.80 and 190,694.67 is: 263,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,655.88 : 474,247.80 = 190,694.67 : x
  2. Step 2: Convert to fraction form
    343,655.88/474,247.80 = 190,694.67/x
  3. Step 3: Cross multiply
    343,655.88x = 474,247.80 × 190,694.67
  4. Step 4: Simplify right side
    343,655.88x = 90,436,527,719.23
  5. Step 5: Solve for x
    x = 90,436,527,719.23/343,655.88
  6. Step 6: Final answer
    x = 263,160.13

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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.