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Finding the Fourth Proportional to 447,028.66, 666,331.70 and 411,156.46

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Solution

The fourth proportional to 447,028.66, 666,331.70 and 411,156.46 is: 612,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,028.66 : 666,331.70 = 411,156.46 : x
  2. Step 2: Convert to fraction form
    447,028.66/666,331.70 = 411,156.46/x
  3. Step 3: Cross multiply
    447,028.66x = 666,331.70 × 411,156.46
  4. Step 4: Simplify right side
    447,028.66x = 273,966,582,957.78
  5. Step 5: Solve for x
    x = 273,966,582,957.78/447,028.66
  6. Step 6: Final answer
    x = 612,861.34

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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.