Home / 661,355.49-992,439.33-525,616.59

Finding the Fourth Proportional to 661,355.49, 992,439.33 and 525,616.59

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Solution

The fourth proportional to 661,355.49, 992,439.33 and 525,616.59 is: 788,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,355.49 : 992,439.33 = 525,616.59 : x
  2. Step 2: Convert to fraction form
    661,355.49/992,439.33 = 525,616.59/x
  3. Step 3: Cross multiply
    661,355.49x = 992,439.33 × 525,616.59
  4. Step 4: Simplify right side
    661,355.49x = 521,642,576,416.49
  5. Step 5: Solve for x
    x = 521,642,576,416.49/661,355.49
  6. Step 6: Final answer
    x = 788,747.63

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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.