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Finding the Fourth Proportional to 700,544.25, 966,752.15 and 398,738.25

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Solution

The fourth proportional to 700,544.25, 966,752.15 and 398,738.25 is: 550,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,544.25 : 966,752.15 = 398,738.25 : x
  2. Step 2: Convert to fraction form
    700,544.25/966,752.15 = 398,738.25/x
  3. Step 3: Cross multiply
    700,544.25x = 966,752.15 × 398,738.25
  4. Step 4: Simplify right side
    700,544.25x = 385,481,058,481.05
  5. Step 5: Solve for x
    x = 385,481,058,481.05/700,544.25
  6. Step 6: Final answer
    x = 550,259.40

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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.