Home / 716,119.69-988,225.44-393,829.75

Finding the Fourth Proportional to 716,119.69, 988,225.44 and 393,829.75

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Solution

The fourth proportional to 716,119.69, 988,225.44 and 393,829.75 is: 543,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,119.69 : 988,225.44 = 393,829.75 : x
  2. Step 2: Convert to fraction form
    716,119.69/988,225.44 = 393,829.75/x
  3. Step 3: Cross multiply
    716,119.69x = 988,225.44 × 393,829.75
  4. Step 4: Simplify right side
    716,119.69x = 389,192,577,978.84
  5. Step 5: Solve for x
    x = 389,192,577,978.84/716,119.69
  6. Step 6: Final answer
    x = 543,474.20

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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.