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Finding the Fourth Proportional to 700,414.16, 966,575.44 and 398,608.16

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Solution

The fourth proportional to 700,414.16, 966,575.44 and 398,608.16 is: 550,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,414.16 : 966,575.44 = 398,608.16 : x
  2. Step 2: Convert to fraction form
    700,414.16/966,575.44 = 398,608.16/x
  3. Step 3: Cross multiply
    700,414.16x = 966,575.44 × 398,608.16
  4. Step 4: Simplify right side
    700,414.16x = 385,284,857,639.59
  5. Step 5: Solve for x
    x = 385,284,857,639.59/700,414.16
  6. Step 6: Final answer
    x = 550,081.48

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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.