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Finding the Fourth Proportional to 483,133.10, 666,785.18 and 292,147.86

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Solution

The fourth proportional to 483,133.10, 666,785.18 and 292,147.86 is: 403,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,133.10 : 666,785.18 = 292,147.86 : x
  2. Step 2: Convert to fraction form
    483,133.10/666,785.18 = 292,147.86/x
  3. Step 3: Cross multiply
    483,133.10x = 666,785.18 × 292,147.86
  4. Step 4: Simplify right side
    483,133.10x = 194,799,860,813.16
  5. Step 5: Solve for x
    x = 194,799,860,813.16/483,133.10
  6. Step 6: Final answer
    x = 403,201.23

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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.