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Finding the Fourth Proportional to 556,078.02, 834,257.13 and 256,768.38

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Solution

The fourth proportional to 556,078.02, 834,257.13 and 256,768.38 is: 385,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,078.02 : 834,257.13 = 256,768.38 : x
  2. Step 2: Convert to fraction form
    556,078.02/834,257.13 = 256,768.38/x
  3. Step 3: Cross multiply
    556,078.02x = 834,257.13 × 256,768.38
  4. Step 4: Simplify right side
    556,078.02x = 214,210,851,773.55
  5. Step 5: Solve for x
    x = 214,210,851,773.55/556,078.02
  6. Step 6: Final answer
    x = 385,217.26

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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.