Home / 811,452.96-1,119,707.49-467,400.78

Finding the Fourth Proportional to 811,452.96, 1,119,707.49 and 467,400.78

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Solution

The fourth proportional to 811,452.96, 1,119,707.49 and 467,400.78 is: 644,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,452.96 : 1,119,707.49 = 467,400.78 : x
  2. Step 2: Convert to fraction form
    811,452.96/1,119,707.49 = 467,400.78/x
  3. Step 3: Cross multiply
    811,452.96x = 1,119,707.49 × 467,400.78
  4. Step 4: Simplify right side
    811,452.96x = 523,352,154,197.84
  5. Step 5: Solve for x
    x = 523,352,154,197.84/811,452.96
  6. Step 6: Final answer
    x = 644,956.86

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Double scale
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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.