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Finding the Fourth Proportional to 411,522.87, 568,095.72 and 309,587.23

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Solution

The fourth proportional to 411,522.87, 568,095.72 and 309,587.23 is: 427,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,522.87 : 568,095.72 = 309,587.23 : x
  2. Step 2: Convert to fraction form
    411,522.87/568,095.72 = 309,587.23/x
  3. Step 3: Cross multiply
    411,522.87x = 568,095.72 × 309,587.23
  4. Step 4: Simplify right side
    411,522.87x = 175,875,180,329.66
  5. Step 5: Solve for x
    x = 175,875,180,329.66/411,522.87
  6. Step 6: Final answer
    x = 427,376.44

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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.