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Finding the Fourth Proportional to 530,879.40, 732,764.10 and 349,723.56

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Solution

The fourth proportional to 530,879.40, 732,764.10 and 349,723.56 is: 482,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,879.40 : 732,764.10 = 349,723.56 : x
  2. Step 2: Convert to fraction form
    530,879.40/732,764.10 = 349,723.56/x
  3. Step 3: Cross multiply
    530,879.40x = 732,764.10 × 349,723.56
  4. Step 4: Simplify right side
    530,879.40x = 256,264,869,692.20
  5. Step 5: Solve for x
    x = 256,264,869,692.20/530,879.40
  6. Step 6: Final answer
    x = 482,717.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.