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Finding the Fourth Proportional to 700,712.06, 966,983.73 and 398,906.06

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Solution

The fourth proportional to 700,712.06, 966,983.73 and 398,906.06 is: 550,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,712.06 : 966,983.73 = 398,906.06 : x
  2. Step 2: Convert to fraction form
    700,712.06/966,983.73 = 398,906.06/x
  3. Step 3: Cross multiply
    700,712.06x = 966,983.73 × 398,906.06
  4. Step 4: Simplify right side
    700,712.06x = 385,735,669,818.40
  5. Step 5: Solve for x
    x = 385,735,669,818.40/700,712.06
  6. Step 6: Final answer
    x = 550,490.98

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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.