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Finding the Fourth Proportional to 505,194.60, 757,389.56 and 291,720.16

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Solution

The fourth proportional to 505,194.60, 757,389.56 and 291,720.16 is: 437,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,194.60 : 757,389.56 = 291,720.16 : x
  2. Step 2: Convert to fraction form
    505,194.60/757,389.56 = 291,720.16/x
  3. Step 3: Cross multiply
    505,194.60x = 757,389.56 × 291,720.16
  4. Step 4: Simplify right side
    505,194.60x = 220,945,803,625.53
  5. Step 5: Solve for x
    x = 220,945,803,625.53/505,194.60
  6. Step 6: Final answer
    x = 437,347.91

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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.