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Finding the Fourth Proportional to 603,345.60, 905,528.70 and 248,614.20

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Solution

The fourth proportional to 603,345.60, 905,528.70 and 248,614.20 is: 373,131.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,345.60 : 905,528.70 = 248,614.20 : x
  2. Step 2: Convert to fraction form
    603,345.60/905,528.70 = 248,614.20/x
  3. Step 3: Cross multiply
    603,345.60x = 905,528.70 × 248,614.20
  4. Step 4: Simplify right side
    603,345.60x = 225,127,293,327.54
  5. Step 5: Solve for x
    x = 225,127,293,327.54/603,345.60
  6. Step 6: Final answer
    x = 373,131.57

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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.