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Finding the Fourth Proportional to 627,567.36, 866,021.76 and 359,243.52

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Solution

The fourth proportional to 627,567.36, 866,021.76 and 359,243.52 is: 495,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,567.36 : 866,021.76 = 359,243.52 : x
  2. Step 2: Convert to fraction form
    627,567.36/866,021.76 = 359,243.52/x
  3. Step 3: Cross multiply
    627,567.36x = 866,021.76 × 359,243.52
  4. Step 4: Simplify right side
    627,567.36x = 311,112,705,459.00
  5. Step 5: Solve for x
    x = 311,112,705,459.00/627,567.36
  6. Step 6: Final answer
    x = 495,743.92

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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.