Home / 782,011.17-1,172,178.41-512,036.96

Finding the Fourth Proportional to 782,011.17, 1,172,178.41 and 512,036.96

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Solution

The fourth proportional to 782,011.17, 1,172,178.41 and 512,036.96 is: 767,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,011.17 : 1,172,178.41 = 512,036.96 : x
  2. Step 2: Convert to fraction form
    782,011.17/1,172,178.41 = 512,036.96/x
  3. Step 3: Cross multiply
    782,011.17x = 1,172,178.41 × 512,036.96
  4. Step 4: Simplify right side
    782,011.17x = 600,198,661,212.96
  5. Step 5: Solve for x
    x = 600,198,661,212.96/782,011.17
  6. Step 6: Final answer
    x = 767,506.51

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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.