Home / 211,628.56-317,438.73-51,705.55

Finding the Fourth Proportional to 211,628.56, 317,438.73 and 51,705.55

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Solution

The fourth proportional to 211,628.56, 317,438.73 and 51,705.55 is: 77,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,628.56 : 317,438.73 = 51,705.55 : x
  2. Step 2: Convert to fraction form
    211,628.56/317,438.73 = 51,705.55/x
  3. Step 3: Cross multiply
    211,628.56x = 317,438.73 × 51,705.55
  4. Step 4: Simplify right side
    211,628.56x = 16,413,344,125.95
  5. Step 5: Solve for x
    x = 16,413,344,125.95/211,628.56
  6. Step 6: Final answer
    x = 77,557.32

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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.