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Finding the Fourth Proportional to 526,638.80, 789,958.20 and 314,062.40

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Solution

The fourth proportional to 526,638.80, 789,958.20 and 314,062.40 is: 471,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,638.80 : 789,958.20 = 314,062.40 : x
  2. Step 2: Convert to fraction form
    526,638.80/789,958.20 = 314,062.40/x
  3. Step 3: Cross multiply
    526,638.80x = 789,958.20 × 314,062.40
  4. Step 4: Simplify right side
    526,638.80x = 248,096,168,191.68
  5. Step 5: Solve for x
    x = 248,096,168,191.68/526,638.80
  6. Step 6: Final answer
    x = 471,093.60

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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.