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Finding the Fourth Proportional to 603,978.62, 905,303.55 and 248,798.87

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Solution

The fourth proportional to 603,978.62, 905,303.55 and 248,798.87 is: 372,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,978.62 : 905,303.55 = 248,798.87 : x
  2. Step 2: Convert to fraction form
    603,978.62/905,303.55 = 248,798.87/x
  3. Step 3: Cross multiply
    603,978.62x = 905,303.55 × 248,798.87
  4. Step 4: Simplify right side
    603,978.62x = 225,238,500,246.99
  5. Step 5: Solve for x
    x = 225,238,500,246.99/603,978.62
  6. Step 6: Final answer
    x = 372,924.62

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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.