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Finding the Fourth Proportional to 657,427.62, 907,264.28 and 363,076.42

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Solution

The fourth proportional to 657,427.62, 907,264.28 and 363,076.42 is: 501,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,427.62 : 907,264.28 = 363,076.42 : x
  2. Step 2: Convert to fraction form
    657,427.62/907,264.28 = 363,076.42/x
  3. Step 3: Cross multiply
    657,427.62x = 907,264.28 × 363,076.42
  4. Step 4: Simplify right side
    657,427.62x = 329,406,264,960.90
  5. Step 5: Solve for x
    x = 329,406,264,960.90/657,427.62
  6. Step 6: Final answer
    x = 501,053.28

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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.