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Finding the Fourth Proportional to 580,672.80, 871,009.20 and 368,096.40

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Solution

The fourth proportional to 580,672.80, 871,009.20 and 368,096.40 is: 552,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,672.80 : 871,009.20 = 368,096.40 : x
  2. Step 2: Convert to fraction form
    580,672.80/871,009.20 = 368,096.40/x
  3. Step 3: Cross multiply
    580,672.80x = 871,009.20 × 368,096.40
  4. Step 4: Simplify right side
    580,672.80x = 320,615,350,886.88
  5. Step 5: Solve for x
    x = 320,615,350,886.88/580,672.80
  6. Step 6: Final answer
    x = 552,144.60

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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.