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Finding the Fourth Proportional to 311,345.70, 467,018.55 and 311,345.70

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Solution

The fourth proportional to 311,345.70, 467,018.55 and 311,345.70 is: 467,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,345.70 : 467,018.55 = 311,345.70 : x
  2. Step 2: Convert to fraction form
    311,345.70/467,018.55 = 311,345.70/x
  3. Step 3: Cross multiply
    311,345.70x = 467,018.55 × 311,345.70
  4. Step 4: Simplify right side
    311,345.70x = 145,404,217,362.74
  5. Step 5: Solve for x
    x = 145,404,217,362.74/311,345.70
  6. Step 6: Final answer
    x = 467,018.55

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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.