Home / 657,836.69-907,829.54-386,100.56

Finding the Fourth Proportional to 657,836.69, 907,829.54 and 386,100.56

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Solution

The fourth proportional to 657,836.69, 907,829.54 and 386,100.56 is: 532,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,836.69 : 907,829.54 = 386,100.56 : x
  2. Step 2: Convert to fraction form
    657,836.69/907,829.54 = 386,100.56/x
  3. Step 3: Cross multiply
    657,836.69x = 907,829.54 × 386,100.56
  4. Step 4: Simplify right side
    657,836.69x = 350,513,487,308.89
  5. Step 5: Solve for x
    x = 350,513,487,308.89/657,836.69
  6. Step 6: Final answer
    x = 532,827.52

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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.