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Finding the Fourth Proportional to 603,835.79, 905,864.40 and 248,656.05

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Solution

The fourth proportional to 603,835.79, 905,864.40 and 248,656.05 is: 373,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,835.79 : 905,864.40 = 248,656.05 : x
  2. Step 2: Convert to fraction form
    603,835.79/905,864.40 = 248,656.05/x
  3. Step 3: Cross multiply
    603,835.79x = 905,864.40 × 248,656.05
  4. Step 4: Simplify right side
    603,835.79x = 225,248,663,539.62
  5. Step 5: Solve for x
    x = 225,248,663,539.62/603,835.79
  6. Step 6: Final answer
    x = 373,029.67

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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.