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Finding the Fourth Proportional to 694,025.16, 957,775.69 and 388,114.44

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Solution

The fourth proportional to 694,025.16, 957,775.69 and 388,114.44 is: 535,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,025.16 : 957,775.69 = 388,114.44 : x
  2. Step 2: Convert to fraction form
    694,025.16/957,775.69 = 388,114.44/x
  3. Step 3: Cross multiply
    694,025.16x = 957,775.69 × 388,114.44
  4. Step 4: Simplify right side
    694,025.16x = 371,726,572,463.45
  5. Step 5: Solve for x
    x = 371,726,572,463.45/694,025.16
  6. Step 6: Final answer
    x = 535,609.65

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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.