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Finding the Fourth Proportional to 311,363.40, 467,045.10 and 297,712.20

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Solution

The fourth proportional to 311,363.40, 467,045.10 and 297,712.20 is: 446,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,363.40 : 467,045.10 = 297,712.20 : x
  2. Step 2: Convert to fraction form
    311,363.40/467,045.10 = 297,712.20/x
  3. Step 3: Cross multiply
    311,363.40x = 467,045.10 × 297,712.20
  4. Step 4: Simplify right side
    311,363.40x = 139,045,024,220.22
  5. Step 5: Solve for x
    x = 139,045,024,220.22/311,363.40
  6. Step 6: Final answer
    x = 446,568.30

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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.