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Finding the Fourth Proportional to 588,542.25, 812,435.11 and 397,813.98

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Solution

The fourth proportional to 588,542.25, 812,435.11 and 397,813.98 is: 549,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,542.25 : 812,435.11 = 397,813.98 : x
  2. Step 2: Convert to fraction form
    588,542.25/812,435.11 = 397,813.98/x
  3. Step 3: Cross multiply
    588,542.25x = 812,435.11 × 397,813.98
  4. Step 4: Simplify right side
    588,542.25x = 323,198,048,890.64
  5. Step 5: Solve for x
    x = 323,198,048,890.64/588,542.25
  6. Step 6: Final answer
    x = 549,150.12

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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.