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Finding the Fourth Proportional to 398,548.01, 597,951.11 and 238,598.93

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Solution

The fourth proportional to 398,548.01, 597,951.11 and 238,598.93 is: 357,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,548.01 : 597,951.11 = 238,598.93 : x
  2. Step 2: Convert to fraction form
    398,548.01/597,951.11 = 238,598.93/x
  3. Step 3: Cross multiply
    398,548.01x = 597,951.11 × 238,598.93
  4. Step 4: Simplify right side
    398,548.01x = 142,670,490,855.56
  5. Step 5: Solve for x
    x = 142,670,490,855.56/398,548.01
  6. Step 6: Final answer
    x = 357,975.67

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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.