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Finding the Fourth Proportional to 603,215.81, 904,953.89 and 203,847.74

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Solution

The fourth proportional to 603,215.81, 904,953.89 and 203,847.74 is: 305,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,215.81 : 904,953.89 = 203,847.74 : x
  2. Step 2: Convert to fraction form
    603,215.81/904,953.89 = 203,847.74/x
  3. Step 3: Cross multiply
    603,215.81x = 904,953.89 × 203,847.74
  4. Step 4: Simplify right side
    603,215.81x = 184,472,805,280.71
  5. Step 5: Solve for x
    x = 184,472,805,280.71/603,215.81
  6. Step 6: Final answer
    x = 305,815.60

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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.