Home / 619,852.90-928,795.20-409,244.80

Finding the Fourth Proportional to 619,852.90, 928,795.20 and 409,244.80

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Solution

The fourth proportional to 619,852.90, 928,795.20 and 409,244.80 is: 613,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,852.90 : 928,795.20 = 409,244.80 : x
  2. Step 2: Convert to fraction form
    619,852.90/928,795.20 = 409,244.80/x
  3. Step 3: Cross multiply
    619,852.90x = 928,795.20 × 409,244.80
  4. Step 4: Simplify right side
    619,852.90x = 380,104,605,864.96
  5. Step 5: Solve for x
    x = 380,104,605,864.96/619,852.90
  6. Step 6: Final answer
    x = 613,217.44

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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.