Home / 665,688.20-998,532.30-453,111.80

Finding the Fourth Proportional to 665,688.20, 998,532.30 and 453,111.80

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Solution

The fourth proportional to 665,688.20, 998,532.30 and 453,111.80 is: 679,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,688.20 : 998,532.30 = 453,111.80 : x
  2. Step 2: Convert to fraction form
    665,688.20/998,532.30 = 453,111.80/x
  3. Step 3: Cross multiply
    665,688.20x = 998,532.30 × 453,111.80
  4. Step 4: Simplify right side
    665,688.20x = 452,446,767,811.14
  5. Step 5: Solve for x
    x = 452,446,767,811.14/665,688.20
  6. Step 6: Final answer
    x = 679,667.70

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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.