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Finding the Fourth Proportional to 547,347.60, 822,005.55 and 397,756.80

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Solution

The fourth proportional to 547,347.60, 822,005.55 and 397,756.80 is: 597,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,347.60 : 822,005.55 = 397,756.80 : x
  2. Step 2: Convert to fraction form
    547,347.60/822,005.55 = 397,756.80/x
  3. Step 3: Cross multiply
    547,347.60x = 822,005.55 × 397,756.80
  4. Step 4: Simplify right side
    547,347.60x = 326,958,297,150.24
  5. Step 5: Solve for x
    x = 326,958,297,150.24/547,347.60
  6. Step 6: Final answer
    x = 597,350.38

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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.