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Finding the Fourth Proportional to 405,534.45, 559,626.45 and 224,240.37

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Solution

The fourth proportional to 405,534.45, 559,626.45 and 224,240.37 is: 309,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,534.45 : 559,626.45 = 224,240.37 : x
  2. Step 2: Convert to fraction form
    405,534.45/559,626.45 = 224,240.37/x
  3. Step 3: Cross multiply
    405,534.45x = 559,626.45 × 224,240.37
  4. Step 4: Simplify right side
    405,534.45x = 125,490,842,209.79
  5. Step 5: Solve for x
    x = 125,490,842,209.79/405,534.45
  6. Step 6: Final answer
    x = 309,445.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.