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Finding the Fourth Proportional to 613,450.57, 920,210.18 and 187,000.25

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Solution

The fourth proportional to 613,450.57, 920,210.18 and 187,000.25 is: 280,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,450.57 : 920,210.18 = 187,000.25 : x
  2. Step 2: Convert to fraction form
    613,450.57/920,210.18 = 187,000.25/x
  3. Step 3: Cross multiply
    613,450.57x = 920,210.18 × 187,000.25
  4. Step 4: Simplify right side
    613,450.57x = 172,079,534,404.55
  5. Step 5: Solve for x
    x = 172,079,534,404.55/613,450.57
  6. Step 6: Final answer
    x = 280,510.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.