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Finding the Fourth Proportional to 483,153.72, 666,644.76 and 292,163.10

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Solution

The fourth proportional to 483,153.72, 666,644.76 and 292,163.10 is: 403,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,153.72 : 666,644.76 = 292,163.10 : x
  2. Step 2: Convert to fraction form
    483,153.72/666,644.76 = 292,163.10/x
  3. Step 3: Cross multiply
    483,153.72x = 666,644.76 × 292,163.10
  4. Step 4: Simplify right side
    483,153.72x = 194,768,999,680.36
  5. Step 5: Solve for x
    x = 194,768,999,680.36/483,153.72
  6. Step 6: Final answer
    x = 403,120.15

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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.