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Finding the Fourth Proportional to 529,589.67, 730,834.23 and 287,872.23

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Solution

The fourth proportional to 529,589.67, 730,834.23 and 287,872.23 is: 397,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,589.67 : 730,834.23 = 287,872.23 : x
  2. Step 2: Convert to fraction form
    529,589.67/730,834.23 = 287,872.23/x
  3. Step 3: Cross multiply
    529,589.67x = 730,834.23 × 287,872.23
  4. Step 4: Simplify right side
    529,589.67x = 210,386,879,550.43
  5. Step 5: Solve for x
    x = 210,386,879,550.43/529,589.67
  6. Step 6: Final answer
    x = 397,263.94

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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.