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Finding the Fourth Proportional to 530,883.26, 732,779 and 361,215.80

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Solution

The fourth proportional to 530,883.26, 732,779 and 361,215.80 is: 498,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,883.26 : 732,779 = 361,215.80 : x
  2. Step 2: Convert to fraction form
    530,883.26/732,779 = 361,215.80/x
  3. Step 3: Cross multiply
    530,883.26x = 732,779 × 361,215.80
  4. Step 4: Simplify right side
    530,883.26x = 264,691,352,708.20
  5. Step 5: Solve for x
    x = 264,691,352,708.20/530,883.26
  6. Step 6: Final answer
    x = 498,586.74

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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.