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Finding the Fourth Proportional to 561,812.88, 842,803.44 and 206,799.84

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Solution

The fourth proportional to 561,812.88, 842,803.44 and 206,799.84 is: 310,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,812.88 : 842,803.44 = 206,799.84 : x
  2. Step 2: Convert to fraction form
    561,812.88/842,803.44 = 206,799.84/x
  3. Step 3: Cross multiply
    561,812.88x = 842,803.44 × 206,799.84
  4. Step 4: Simplify right side
    561,812.88x = 174,291,616,543.45
  5. Step 5: Solve for x
    x = 174,291,616,543.45/561,812.88
  6. Step 6: Final answer
    x = 310,230.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.