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Finding the Fourth Proportional to 307,532.16, 424,255.50 and 180,153.90

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Solution

The fourth proportional to 307,532.16, 424,255.50 and 180,153.90 is: 248,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,532.16 : 424,255.50 = 180,153.90 : x
  2. Step 2: Convert to fraction form
    307,532.16/424,255.50 = 180,153.90/x
  3. Step 3: Cross multiply
    307,532.16x = 424,255.50 × 180,153.90
  4. Step 4: Simplify right side
    307,532.16x = 76,431,282,921.45
  5. Step 5: Solve for x
    x = 76,431,282,921.45/307,532.16
  6. Step 6: Final answer
    x = 248,531.02

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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.