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Finding the Fourth Proportional to 526,015.10, 789,022.65 and 365,051.90

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Solution

The fourth proportional to 526,015.10, 789,022.65 and 365,051.90 is: 547,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,015.10 : 789,022.65 = 365,051.90 : x
  2. Step 2: Convert to fraction form
    526,015.10/789,022.65 = 365,051.90/x
  3. Step 3: Cross multiply
    526,015.10x = 789,022.65 × 365,051.90
  4. Step 4: Simplify right side
    526,015.10x = 288,034,217,525.54
  5. Step 5: Solve for x
    x = 288,034,217,525.54/526,015.10
  6. Step 6: Final answer
    x = 547,577.85

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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.