Home / 854,388.35-1,281,776.93-499,219.55

Finding the Fourth Proportional to 854,388.35, 1,281,776.93 and 499,219.55

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Solution

The fourth proportional to 854,388.35, 1,281,776.93 and 499,219.55 is: 748,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,388.35 : 1,281,776.93 = 499,219.55 : x
  2. Step 2: Convert to fraction form
    854,388.35/1,281,776.93 = 499,219.55/x
  3. Step 3: Cross multiply
    854,388.35x = 1,281,776.93 × 499,219.55
  4. Step 4: Simplify right side
    854,388.35x = 639,888,099,698.88
  5. Step 5: Solve for x
    x = 639,888,099,698.88/854,388.35
  6. Step 6: Final answer
    x = 748,942.91

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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.