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Finding the Fourth Proportional to 541,396.32, 813,566.63 and 288,855.23

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Solution

The fourth proportional to 541,396.32, 813,566.63 and 288,855.23 is: 434,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,396.32 : 813,566.63 = 288,855.23 : x
  2. Step 2: Convert to fraction form
    541,396.32/813,566.63 = 288,855.23/x
  3. Step 3: Cross multiply
    541,396.32x = 813,566.63 × 288,855.23
  4. Step 4: Simplify right side
    541,396.32x = 235,002,970,516.87
  5. Step 5: Solve for x
    x = 235,002,970,516.87/541,396.32
  6. Step 6: Final answer
    x = 434,068.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.