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Finding the Fourth Proportional to 824,353.86, 1,137,620.16 and 480,181

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Solution

The fourth proportional to 824,353.86, 1,137,620.16 and 480,181 is: 662,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,353.86 : 1,137,620.16 = 480,181 : x
  2. Step 2: Convert to fraction form
    824,353.86/1,137,620.16 = 480,181/x
  3. Step 3: Cross multiply
    824,353.86x = 1,137,620.16 × 480,181
  4. Step 4: Simplify right side
    824,353.86x = 546,263,586,048.96
  5. Step 5: Solve for x
    x = 546,263,586,048.96/824,353.86
  6. Step 6: Final answer
    x = 662,656.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.