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Finding the Fourth Proportional to 629,714.60, 944,571.90 and 605,220.20

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Solution

The fourth proportional to 629,714.60, 944,571.90 and 605,220.20 is: 907,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,714.60 : 944,571.90 = 605,220.20 : x
  2. Step 2: Convert to fraction form
    629,714.60/944,571.90 = 605,220.20/x
  3. Step 3: Cross multiply
    629,714.60x = 944,571.90 × 605,220.20
  4. Step 4: Simplify right side
    629,714.60x = 571,673,994,232.38
  5. Step 5: Solve for x
    x = 571,673,994,232.38/629,714.60
  6. Step 6: Final answer
    x = 907,830.30

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Half scale
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Double scale
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Similar ratio
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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.