Home / 513,171.52-769,788.88-197,628.72

Finding the Fourth Proportional to 513,171.52, 769,788.88 and 197,628.72

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Solution

The fourth proportional to 513,171.52, 769,788.88 and 197,628.72 is: 296,455.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,171.52 : 769,788.88 = 197,628.72 : x
  2. Step 2: Convert to fraction form
    513,171.52/769,788.88 = 197,628.72/x
  3. Step 3: Cross multiply
    513,171.52x = 769,788.88 × 197,628.72
  4. Step 4: Simplify right side
    513,171.52x = 152,132,391,024.63
  5. Step 5: Solve for x
    x = 152,132,391,024.63/513,171.52
  6. Step 6: Final answer
    x = 296,455.25

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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.