Home / 657,841.36-907,821.06-356,035.36

Finding the Fourth Proportional to 657,841.36, 907,821.06 and 356,035.36

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Solution

The fourth proportional to 657,841.36, 907,821.06 and 356,035.36 is: 491,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,841.36 : 907,821.06 = 356,035.36 : x
  2. Step 2: Convert to fraction form
    657,841.36/907,821.06 = 356,035.36/x
  3. Step 3: Cross multiply
    657,841.36x = 907,821.06 × 356,035.36
  4. Step 4: Simplify right side
    657,841.36x = 323,216,397,912.68
  5. Step 5: Solve for x
    x = 323,216,397,912.68/657,841.36
  6. Step 6: Final answer
    x = 491,328.79

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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.