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Finding the Fourth Proportional to 307,339.83, 424,184.99 and 178,360.83

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Solution

The fourth proportional to 307,339.83, 424,184.99 and 178,360.83 is: 246,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,339.83 : 424,184.99 = 178,360.83 : x
  2. Step 2: Convert to fraction form
    307,339.83/424,184.99 = 178,360.83/x
  3. Step 3: Cross multiply
    307,339.83x = 424,184.99 × 178,360.83
  4. Step 4: Simplify right side
    307,339.83x = 75,657,985,998.14
  5. Step 5: Solve for x
    x = 75,657,985,998.14/307,339.83
  6. Step 6: Final answer
    x = 246,170.46

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1.5x scale

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.