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Finding the Fourth Proportional to 505,059.96, 757,855.96 and 291,977.52

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Solution

The fourth proportional to 505,059.96, 757,855.96 and 291,977.52 is: 438,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,059.96 : 757,855.96 = 291,977.52 : x
  2. Step 2: Convert to fraction form
    505,059.96/757,855.96 = 291,977.52/x
  3. Step 3: Cross multiply
    505,059.96x = 757,855.96 × 291,977.52
  4. Step 4: Simplify right side
    505,059.96x = 221,276,903,718.02
  5. Step 5: Solve for x
    x = 221,276,903,718.02/505,059.96
  6. Step 6: Final answer
    x = 438,120.07

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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.