Home / 619,120.56-928,681.04-408,709.29

Finding the Fourth Proportional to 619,120.56, 928,681.04 and 408,709.29

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Solution

The fourth proportional to 619,120.56, 928,681.04 and 408,709.29 is: 613,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,120.56 : 928,681.04 = 408,709.29 : x
  2. Step 2: Convert to fraction form
    619,120.56/928,681.04 = 408,709.29/x
  3. Step 3: Cross multiply
    619,120.56x = 928,681.04 × 408,709.29
  4. Step 4: Simplify right side
    619,120.56x = 379,560,569,516.64
  5. Step 5: Solve for x
    x = 379,560,569,516.64/619,120.56
  6. Step 6: Final answer
    x = 613,064.07

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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.