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Finding the Fourth Proportional to 526,145.70, 789,218.55 and 230,657.70

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Solution

The fourth proportional to 526,145.70, 789,218.55 and 230,657.70 is: 345,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,145.70 : 789,218.55 = 230,657.70 : x
  2. Step 2: Convert to fraction form
    526,145.70/789,218.55 = 230,657.70/x
  3. Step 3: Cross multiply
    526,145.70x = 789,218.55 × 230,657.70
  4. Step 4: Simplify right side
    526,145.70x = 182,039,335,540.34
  5. Step 5: Solve for x
    x = 182,039,335,540.34/526,145.70
  6. Step 6: Final answer
    x = 345,986.55

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Half scale
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Double scale
Find fourth proportional to 526,146.70, 789,220.05 and 230,658.70
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.