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Finding the Fourth Proportional to 405,048.40, 607,572.60 and 194,635.60

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Solution

The fourth proportional to 405,048.40, 607,572.60 and 194,635.60 is: 291,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,048.40 : 607,572.60 = 194,635.60 : x
  2. Step 2: Convert to fraction form
    405,048.40/607,572.60 = 194,635.60/x
  3. Step 3: Cross multiply
    405,048.40x = 607,572.60 × 194,635.60
  4. Step 4: Simplify right side
    405,048.40x = 118,255,257,544.56
  5. Step 5: Solve for x
    x = 118,255,257,544.56/405,048.40
  6. Step 6: Final answer
    x = 291,953.40

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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.