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Finding the Fourth Proportional to 437,561.74, 603,890.19 and 256,342.83

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Solution

The fourth proportional to 437,561.74, 603,890.19 and 256,342.83 is: 353,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.74 : 603,890.19 = 256,342.83 : x
  2. Step 2: Convert to fraction form
    437,561.74/603,890.19 = 256,342.83/x
  3. Step 3: Cross multiply
    437,561.74x = 603,890.19 × 256,342.83
  4. Step 4: Simplify right side
    437,561.74x = 154,802,920,313.84
  5. Step 5: Solve for x
    x = 154,802,920,313.84/437,561.74
  6. Step 6: Final answer
    x = 353,785.32

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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.