Home / 664,234.14-916,616.70-392,389.33

Finding the Fourth Proportional to 664,234.14, 916,616.70 and 392,389.33

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Solution

The fourth proportional to 664,234.14, 916,616.70 and 392,389.33 is: 541,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,234.14 : 916,616.70 = 392,389.33 : x
  2. Step 2: Convert to fraction form
    664,234.14/916,616.70 = 392,389.33/x
  3. Step 3: Cross multiply
    664,234.14x = 916,616.70 × 392,389.33
  4. Step 4: Simplify right side
    664,234.14x = 359,670,612,779.81
  5. Step 5: Solve for x
    x = 359,670,612,779.81/664,234.14
  6. Step 6: Final answer
    x = 541,481.67

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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.