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Finding the Fourth Proportional to 397,463.40, 596,195.10 and 353,917.80

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Solution

The fourth proportional to 397,463.40, 596,195.10 and 353,917.80 is: 530,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,463.40 : 596,195.10 = 353,917.80 : x
  2. Step 2: Convert to fraction form
    397,463.40/596,195.10 = 353,917.80/x
  3. Step 3: Cross multiply
    397,463.40x = 596,195.10 × 353,917.80
  4. Step 4: Simplify right side
    397,463.40x = 211,004,058,162.78
  5. Step 5: Solve for x
    x = 211,004,058,162.78/397,463.40
  6. Step 6: Final answer
    x = 530,876.70

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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.