Home / 657,923.10-907,933.77-356,117.10

Finding the Fourth Proportional to 657,923.10, 907,933.77 and 356,117.10

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Solution

The fourth proportional to 657,923.10, 907,933.77 and 356,117.10 is: 491,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,923.10 : 907,933.77 = 356,117.10 : x
  2. Step 2: Convert to fraction form
    657,923.10/907,933.77 = 356,117.10/x
  3. Step 3: Cross multiply
    657,923.10x = 907,933.77 × 356,117.10
  4. Step 4: Simplify right side
    657,923.10x = 323,330,741,164.47
  5. Step 5: Solve for x
    x = 323,330,741,164.47/657,923.10
  6. Step 6: Final answer
    x = 491,441.54

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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.