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Finding the Fourth Proportional to 374,145.96, 515,271.78 and 350,132.16

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Solution

The fourth proportional to 374,145.96, 515,271.78 and 350,132.16 is: 482,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,145.96 : 515,271.78 = 350,132.16 : x
  2. Step 2: Convert to fraction form
    374,145.96/515,271.78 = 350,132.16/x
  3. Step 3: Cross multiply
    374,145.96x = 515,271.78 × 350,132.16
  4. Step 4: Simplify right side
    374,145.96x = 180,413,221,318.45
  5. Step 5: Solve for x
    x = 180,413,221,318.45/374,145.96
  6. Step 6: Final answer
    x = 482,200.11

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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.