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Finding the Fourth Proportional to 626,193.15, 864,146.87 and 339,713.21

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Solution

The fourth proportional to 626,193.15, 864,146.87 and 339,713.21 is: 468,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,193.15 : 864,146.87 = 339,713.21 : x
  2. Step 2: Convert to fraction form
    626,193.15/864,146.87 = 339,713.21/x
  3. Step 3: Cross multiply
    626,193.15x = 864,146.87 × 339,713.21
  4. Step 4: Simplify right side
    626,193.15x = 293,562,101,099.85
  5. Step 5: Solve for x
    x = 293,562,101,099.85/626,193.15
  6. Step 6: Final answer
    x = 468,804.40

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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.