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Finding the Fourth Proportional to 619,239.80, 928,859.70 and 367,297.40

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Solution

The fourth proportional to 619,239.80, 928,859.70 and 367,297.40 is: 550,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,239.80 : 928,859.70 = 367,297.40 : x
  2. Step 2: Convert to fraction form
    619,239.80/928,859.70 = 367,297.40/x
  3. Step 3: Cross multiply
    619,239.80x = 928,859.70 × 367,297.40
  4. Step 4: Simplify right side
    619,239.80x = 341,167,752,774.78
  5. Step 5: Solve for x
    x = 341,167,752,774.78/619,239.80
  6. Step 6: Final answer
    x = 550,946.10

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Similar ratio
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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.