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Finding the Fourth Proportional to 530,879.38, 732,773.64 and 361,211.92

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Solution

The fourth proportional to 530,879.38, 732,773.64 and 361,211.92 is: 498,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,879.38 : 732,773.64 = 361,211.92 : x
  2. Step 2: Convert to fraction form
    530,879.38/732,773.64 = 361,211.92/x
  3. Step 3: Cross multiply
    530,879.38x = 732,773.64 × 361,211.92
  4. Step 4: Simplify right side
    530,879.38x = 264,686,573,429.79
  5. Step 5: Solve for x
    x = 264,686,573,429.79/530,879.38
  6. Step 6: Final answer
    x = 498,581.38

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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.