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Finding the Fourth Proportional to 517,525.56, 776,288.28 and 143,548.56

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Solution

The fourth proportional to 517,525.56, 776,288.28 and 143,548.56 is: 215,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,525.56 : 776,288.28 = 143,548.56 : x
  2. Step 2: Convert to fraction form
    517,525.56/776,288.28 = 143,548.56/x
  3. Step 3: Cross multiply
    517,525.56x = 776,288.28 × 143,548.56
  4. Step 4: Simplify right side
    517,525.56x = 111,435,064,738.88
  5. Step 5: Solve for x
    x = 111,435,064,738.88/517,525.56
  6. Step 6: Final answer
    x = 215,322.82

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Double scale
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Similar ratio
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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.