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Finding the Fourth Proportional to 629,765.10, 944,647.65 and 623,860.20

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Solution

The fourth proportional to 629,765.10, 944,647.65 and 623,860.20 is: 935,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,765.10 : 944,647.65 = 623,860.20 : x
  2. Step 2: Convert to fraction form
    629,765.10/944,647.65 = 623,860.20/x
  3. Step 3: Cross multiply
    629,765.10x = 944,647.65 × 623,860.20
  4. Step 4: Simplify right side
    629,765.10x = 589,328,071,858.53
  5. Step 5: Solve for x
    x = 589,328,071,858.53/629,765.10
  6. Step 6: Final answer
    x = 935,790.30

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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.