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Finding the Fourth Proportional to 552,082.12, 761,900.36 and 310,440.49

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Solution

The fourth proportional to 552,082.12, 761,900.36 and 310,440.49 is: 428,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,082.12 : 761,900.36 = 310,440.49 : x
  2. Step 2: Convert to fraction form
    552,082.12/761,900.36 = 310,440.49/x
  3. Step 3: Cross multiply
    552,082.12x = 761,900.36 × 310,440.49
  4. Step 4: Simplify right side
    552,082.12x = 236,524,717,632.62
  5. Step 5: Solve for x
    x = 236,524,717,632.62/552,082.12
  6. Step 6: Final answer
    x = 428,423.07

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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.