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Finding the Fourth Proportional to 695,913.16, 960,328.02 and 394,109.32

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Solution

The fourth proportional to 695,913.16, 960,328.02 and 394,109.32 is: 543,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,913.16 : 960,328.02 = 394,109.32 : x
  2. Step 2: Convert to fraction form
    695,913.16/960,328.02 = 394,109.32/x
  3. Step 3: Cross multiply
    695,913.16x = 960,328.02 × 394,109.32
  4. Step 4: Simplify right side
    695,913.16x = 378,474,222,939.15
  5. Step 5: Solve for x
    x = 378,474,222,939.15/695,913.16
  6. Step 6: Final answer
    x = 543,852.66

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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.