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Finding the Fourth Proportional to 346,729.48, 520,232.22 and 133,440.12

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Solution

The fourth proportional to 346,729.48, 520,232.22 and 133,440.12 is: 200,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,729.48 : 520,232.22 = 133,440.12 : x
  2. Step 2: Convert to fraction form
    346,729.48/520,232.22 = 133,440.12/x
  3. Step 3: Cross multiply
    346,729.48x = 520,232.22 × 133,440.12
  4. Step 4: Simplify right side
    346,729.48x = 69,419,849,864.67
  5. Step 5: Solve for x
    x = 69,419,849,864.67/346,729.48
  6. Step 6: Final answer
    x = 200,213.29

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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.