Home / 456,586.20-683,567.10-279,439.20

Finding the Fourth Proportional to 456,586.20, 683,567.10 and 279,439.20

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Solution

The fourth proportional to 456,586.20, 683,567.10 and 279,439.20 is: 418,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,586.20 : 683,567.10 = 279,439.20 : x
  2. Step 2: Convert to fraction form
    456,586.20/683,567.10 = 279,439.20/x
  3. Step 3: Cross multiply
    456,586.20x = 683,567.10 × 279,439.20
  4. Step 4: Simplify right side
    456,586.20x = 191,015,443,570.32
  5. Step 5: Solve for x
    x = 191,015,443,570.32/456,586.20
  6. Step 6: Final answer
    x = 418,355.71

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1.5x scale

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.