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Finding the Fourth Proportional to 526,517.70, 789,776.55 and 367,085.40

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Solution

The fourth proportional to 526,517.70, 789,776.55 and 367,085.40 is: 550,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,517.70 : 789,776.55 = 367,085.40 : x
  2. Step 2: Convert to fraction form
    526,517.70/789,776.55 = 367,085.40/x
  3. Step 3: Cross multiply
    526,517.70x = 789,776.55 × 367,085.40
  4. Step 4: Simplify right side
    526,517.70x = 289,915,440,767.37
  5. Step 5: Solve for x
    x = 289,915,440,767.37/526,517.70
  6. Step 6: Final answer
    x = 550,628.10

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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.