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Finding the Fourth Proportional to 892,870.92, 1,231,812.90 and 510,693.48

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Solution

The fourth proportional to 892,870.92, 1,231,812.90 and 510,693.48 is: 704,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,870.92 : 1,231,812.90 = 510,693.48 : x
  2. Step 2: Convert to fraction form
    892,870.92/1,231,812.90 = 510,693.48/x
  3. Step 3: Cross multiply
    892,870.92x = 1,231,812.90 × 510,693.48
  4. Step 4: Simplify right side
    892,870.92x = 629,078,816,609.89
  5. Step 5: Solve for x
    x = 629,078,816,609.89/892,870.92
  6. Step 6: Final answer
    x = 704,557.40

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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.