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Finding the Fourth Proportional to 676,083.36, 933,202.56 and 389,794.56

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Solution

The fourth proportional to 676,083.36, 933,202.56 and 389,794.56 is: 538,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,083.36 : 933,202.56 = 389,794.56 : x
  2. Step 2: Convert to fraction form
    676,083.36/933,202.56 = 389,794.56/x
  3. Step 3: Cross multiply
    676,083.36x = 933,202.56 × 389,794.56
  4. Step 4: Simplify right side
    676,083.36x = 363,757,281,266.07
  5. Step 5: Solve for x
    x = 363,757,281,266.07/676,083.36
  6. Step 6: Final answer
    x = 538,036.14

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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.