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Finding the Fourth Proportional to 580,683.20, 871,173.12 and 281,307.20

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Solution

The fourth proportional to 580,683.20, 871,173.12 and 281,307.20 is: 422,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,683.20 : 871,173.12 = 281,307.20 : x
  2. Step 2: Convert to fraction form
    580,683.20/871,173.12 = 281,307.20/x
  3. Step 3: Cross multiply
    580,683.20x = 871,173.12 × 281,307.20
  4. Step 4: Simplify right side
    580,683.20x = 245,067,271,102.46
  5. Step 5: Solve for x
    x = 245,067,271,102.46/580,683.20
  6. Step 6: Final answer
    x = 422,032.65

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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.