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Finding the Fourth Proportional to 556,457.64, 834,589.53 and 256,912.62

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Solution

The fourth proportional to 556,457.64, 834,589.53 and 256,912.62 is: 385,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,457.64 : 834,589.53 = 256,912.62 : x
  2. Step 2: Convert to fraction form
    556,457.64/834,589.53 = 256,912.62/x
  3. Step 3: Cross multiply
    556,457.64x = 834,589.53 × 256,912.62
  4. Step 4: Simplify right side
    556,457.64x = 214,416,582,776.87
  5. Step 5: Solve for x
    x = 214,416,582,776.87/556,457.64
  6. Step 6: Final answer
    x = 385,324.18

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1.5x scale

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.