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Finding the Fourth Proportional to 579,813.50, 800,230.12 and 353,590.22

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Solution

The fourth proportional to 579,813.50, 800,230.12 and 353,590.22 is: 488,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,813.50 : 800,230.12 = 353,590.22 : x
  2. Step 2: Convert to fraction form
    579,813.50/800,230.12 = 353,590.22/x
  3. Step 3: Cross multiply
    579,813.50x = 800,230.12 × 353,590.22
  4. Step 4: Simplify right side
    579,813.50x = 282,953,544,181.43
  5. Step 5: Solve for x
    x = 282,953,544,181.43/579,813.50
  6. Step 6: Final answer
    x = 488,007.86

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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.