Home / 657,933.78-907,569.63-396,106.82

Finding the Fourth Proportional to 657,933.78, 907,569.63 and 396,106.82

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Solution

The fourth proportional to 657,933.78, 907,569.63 and 396,106.82 is: 546,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,933.78 : 907,569.63 = 396,106.82 : x
  2. Step 2: Convert to fraction form
    657,933.78/907,569.63 = 396,106.82/x
  3. Step 3: Cross multiply
    657,933.78x = 907,569.63 × 396,106.82
  4. Step 4: Simplify right side
    657,933.78x = 359,494,515,530.03
  5. Step 5: Solve for x
    x = 359,494,515,530.03/657,933.78
  6. Step 6: Final answer
    x = 546,399.24

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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.