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Finding the Fourth Proportional to 447,525.57, 617,590.32 and 243,577.78

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Solution

The fourth proportional to 447,525.57, 617,590.32 and 243,577.78 is: 336,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,525.57 : 617,590.32 = 243,577.78 : x
  2. Step 2: Convert to fraction form
    447,525.57/617,590.32 = 243,577.78/x
  3. Step 3: Cross multiply
    447,525.57x = 617,590.32 × 243,577.78
  4. Step 4: Simplify right side
    447,525.57x = 150,431,279,095.09
  5. Step 5: Solve for x
    x = 150,431,279,095.09/447,525.57
  6. Step 6: Final answer
    x = 336,140.08

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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.