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Finding the Fourth Proportional to 261,247.77, 358,173.74 and 256,523.85

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Solution

The fourth proportional to 261,247.77, 358,173.74 and 256,523.85 is: 351,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,247.77 : 358,173.74 = 256,523.85 : x
  2. Step 2: Convert to fraction form
    261,247.77/358,173.74 = 256,523.85/x
  3. Step 3: Cross multiply
    261,247.77x = 358,173.74 × 256,523.85
  4. Step 4: Simplify right side
    261,247.77x = 91,880,105,471.08
  5. Step 5: Solve for x
    x = 91,880,105,471.08/261,247.77
  6. Step 6: Final answer
    x = 351,697.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.