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Finding the Fourth Proportional to 556,246.56, 834,578.64 and 256,870.56

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Solution

The fourth proportional to 556,246.56, 834,578.64 and 256,870.56 is: 385,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,246.56 : 834,578.64 = 256,870.56 : x
  2. Step 2: Convert to fraction form
    556,246.56/834,578.64 = 256,870.56/x
  3. Step 3: Cross multiply
    556,246.56x = 834,578.64 × 256,870.56
  4. Step 4: Simplify right side
    556,246.56x = 214,378,682,620.84
  5. Step 5: Solve for x
    x = 214,378,682,620.84/556,246.56
  6. Step 6: Final answer
    x = 385,402.26

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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.