Home / 649,383.12-896,251.08-394,814.16

Finding the Fourth Proportional to 649,383.12, 896,251.08 and 394,814.16

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Solution

The fourth proportional to 649,383.12, 896,251.08 and 394,814.16 is: 544,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,383.12 : 896,251.08 = 394,814.16 : x
  2. Step 2: Convert to fraction form
    649,383.12/896,251.08 = 394,814.16/x
  3. Step 3: Cross multiply
    649,383.12x = 896,251.08 × 394,814.16
  4. Step 4: Simplify right side
    649,383.12x = 353,852,617,299.29
  5. Step 5: Solve for x
    x = 353,852,617,299.29/649,383.12
  6. Step 6: Final answer
    x = 544,905.78

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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.