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Finding the Fourth Proportional to 525,139.91, 723,168.23 and 456,197.97

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Solution

The fourth proportional to 525,139.91, 723,168.23 and 456,197.97 is: 628,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,139.91 : 723,168.23 = 456,197.97 : x
  2. Step 2: Convert to fraction form
    525,139.91/723,168.23 = 456,197.97/x
  3. Step 3: Cross multiply
    525,139.91x = 723,168.23 × 456,197.97
  4. Step 4: Simplify right side
    525,139.91x = 329,907,876,213.50
  5. Step 5: Solve for x
    x = 329,907,876,213.50/525,139.91
  6. Step 6: Final answer
    x = 628,228.54

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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.