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Finding the Fourth Proportional to 307,469.06, 424,242.49 and 186,673.86

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Solution

The fourth proportional to 307,469.06, 424,242.49 and 186,673.86 is: 257,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,469.06 : 424,242.49 = 186,673.86 : x
  2. Step 2: Convert to fraction form
    307,469.06/424,242.49 = 186,673.86/x
  3. Step 3: Cross multiply
    307,469.06x = 424,242.49 × 186,673.86
  4. Step 4: Simplify right side
    307,469.06x = 79,194,983,184.31
  5. Step 5: Solve for x
    x = 79,194,983,184.31/307,469.06
  6. Step 6: Final answer
    x = 257,570.58

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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.