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Finding the Fourth Proportional to 505,193.60, 757,388.06 and 291,719.16

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Solution

The fourth proportional to 505,193.60, 757,388.06 and 291,719.16 is: 437,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,193.60 : 757,388.06 = 291,719.16 : x
  2. Step 2: Convert to fraction form
    505,193.60/757,388.06 = 291,719.16/x
  3. Step 3: Cross multiply
    505,193.60x = 757,388.06 × 291,719.16
  4. Step 4: Simplify right side
    505,193.60x = 220,944,608,657.23
  5. Step 5: Solve for x
    x = 220,944,608,657.23/505,193.60
  6. Step 6: Final answer
    x = 437,346.41

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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.