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Finding the Fourth Proportional to 627,778.10, 866,014.39 and 410,114.19

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Solution

The fourth proportional to 627,778.10, 866,014.39 and 410,114.19 is: 565,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,778.10 : 866,014.39 = 410,114.19 : x
  2. Step 2: Convert to fraction form
    627,778.10/866,014.39 = 410,114.19/x
  3. Step 3: Cross multiply
    627,778.10x = 866,014.39 × 410,114.19
  4. Step 4: Simplify right side
    627,778.10x = 355,164,790,125.51
  5. Step 5: Solve for x
    x = 355,164,790,125.51/627,778.10
  6. Step 6: Final answer
    x = 565,748.94

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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.