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Finding the Fourth Proportional to 505,192.60, 757,386.56 and 291,718.16

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Solution

The fourth proportional to 505,192.60, 757,386.56 and 291,718.16 is: 437,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,192.60 : 757,386.56 = 291,718.16 : x
  2. Step 2: Convert to fraction form
    505,192.60/757,386.56 = 291,718.16/x
  3. Step 3: Cross multiply
    505,192.60x = 757,386.56 × 291,718.16
  4. Step 4: Simplify right side
    505,192.60x = 220,943,413,691.93
  5. Step 5: Solve for x
    x = 220,943,413,691.93/505,192.60
  6. Step 6: Final answer
    x = 437,344.91

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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.