Home / 869,824.84-1,200,357.90-507,178.66

Finding the Fourth Proportional to 869,824.84, 1,200,357.90 and 507,178.66

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Solution

The fourth proportional to 869,824.84, 1,200,357.90 and 507,178.66 is: 699,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,824.84 : 1,200,357.90 = 507,178.66 : x
  2. Step 2: Convert to fraction form
    869,824.84/1,200,357.90 = 507,178.66/x
  3. Step 3: Cross multiply
    869,824.84x = 1,200,357.90 × 507,178.66
  4. Step 4: Simplify right side
    869,824.84x = 608,795,902,704.73
  5. Step 5: Solve for x
    x = 608,795,902,704.73/869,824.84
  6. Step 6: Final answer
    x = 699,906.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.