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Finding the Fourth Proportional to 367,790.68, 507,777.57 and 291,617.47

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Solution

The fourth proportional to 367,790.68, 507,777.57 and 291,617.47 is: 402,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,790.68 : 507,777.57 = 291,617.47 : x
  2. Step 2: Convert to fraction form
    367,790.68/507,777.57 = 291,617.47/x
  3. Step 3: Cross multiply
    367,790.68x = 507,777.57 × 291,617.47
  4. Step 4: Simplify right side
    367,790.68x = 148,076,810,286.15
  5. Step 5: Solve for x
    x = 148,076,810,286.15/367,790.68
  6. Step 6: Final answer
    x = 402,611.64

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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.