Home / 437,409.24-603,637.55-256,104.21

Finding the Fourth Proportional to 437,409.24, 603,637.55 and 256,104.21

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Solution

The fourth proportional to 437,409.24, 603,637.55 and 256,104.21 is: 353,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,409.24 : 603,637.55 = 256,104.21 : x
  2. Step 2: Convert to fraction form
    437,409.24/603,637.55 = 256,104.21/x
  3. Step 3: Cross multiply
    437,409.24x = 603,637.55 × 256,104.21
  4. Step 4: Simplify right side
    437,409.24x = 154,594,117,869.09
  5. Step 5: Solve for x
    x = 154,594,117,869.09/437,409.24
  6. Step 6: Final answer
    x = 353,431.30

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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.