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Finding the Fourth Proportional to 657,429.37, 907,266.69 and 363,078.17

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Solution

The fourth proportional to 657,429.37, 907,266.69 and 363,078.17 is: 501,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,429.37 : 907,266.69 = 363,078.17 : x
  2. Step 2: Convert to fraction form
    657,429.37/907,266.69 = 363,078.17/x
  3. Step 3: Cross multiply
    657,429.37x = 907,266.69 × 363,078.17
  4. Step 4: Simplify right side
    657,429.37x = 329,408,729,507.16
  5. Step 5: Solve for x
    x = 329,408,729,507.16/657,429.37
  6. Step 6: Final answer
    x = 501,055.69

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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.