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Finding the Fourth Proportional to 666,314.68, 999,472.02 and 193,000.20

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Solution

The fourth proportional to 666,314.68, 999,472.02 and 193,000.20 is: 289,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,314.68 : 999,472.02 = 193,000.20 : x
  2. Step 2: Convert to fraction form
    666,314.68/999,472.02 = 193,000.20/x
  3. Step 3: Cross multiply
    666,314.68x = 999,472.02 × 193,000.20
  4. Step 4: Simplify right side
    666,314.68x = 192,898,299,754.40
  5. Step 5: Solve for x
    x = 192,898,299,754.40/666,314.68
  6. Step 6: Final answer
    x = 289,500.30

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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.