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Finding the Fourth Proportional to 307,352.52, 424,188.09 and 180,078.84

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Solution

The fourth proportional to 307,352.52, 424,188.09 and 180,078.84 is: 248,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,352.52 : 424,188.09 = 180,078.84 : x
  2. Step 2: Convert to fraction form
    307,352.52/424,188.09 = 180,078.84/x
  3. Step 3: Cross multiply
    307,352.52x = 424,188.09 × 180,078.84
  4. Step 4: Simplify right side
    307,352.52x = 76,387,299,189.02
  5. Step 5: Solve for x
    x = 76,387,299,189.02/307,352.52
  6. Step 6: Final answer
    x = 248,533.18

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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.