Home / 738,984.89-1,019,798.70-399,453.14

Finding the Fourth Proportional to 738,984.89, 1,019,798.70 and 399,453.14

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Solution

The fourth proportional to 738,984.89, 1,019,798.70 and 399,453.14 is: 551,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,984.89 : 1,019,798.70 = 399,453.14 : x
  2. Step 2: Convert to fraction form
    738,984.89/1,019,798.70 = 399,453.14/x
  3. Step 3: Cross multiply
    738,984.89x = 1,019,798.70 × 399,453.14
  4. Step 4: Simplify right side
    738,984.89x = 407,361,795,432.42
  5. Step 5: Solve for x
    x = 407,361,795,432.42/738,984.89
  6. Step 6: Final answer
    x = 551,245.09

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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.