Home / 521,856.10-782,537.40-202,157.71

Finding the Fourth Proportional to 521,856.10, 782,537.40 and 202,157.71

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Solution

The fourth proportional to 521,856.10, 782,537.40 and 202,157.71 is: 303,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,856.10 : 782,537.40 = 202,157.71 : x
  2. Step 2: Convert to fraction form
    521,856.10/782,537.40 = 202,157.71/x
  3. Step 3: Cross multiply
    521,856.10x = 782,537.40 × 202,157.71
  4. Step 4: Simplify right side
    521,856.10x = 158,195,968,773.35
  5. Step 5: Solve for x
    x = 158,195,968,773.35/521,856.10
  6. Step 6: Final answer
    x = 303,140.98

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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.