Home / 511,022.95-767,212.66-436,621.21

Finding the Fourth Proportional to 511,022.95, 767,212.66 and 436,621.21

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Solution

The fourth proportional to 511,022.95, 767,212.66 and 436,621.21 is: 655,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,022.95 : 767,212.66 = 436,621.21 : x
  2. Step 2: Convert to fraction form
    511,022.95/767,212.66 = 436,621.21/x
  3. Step 3: Cross multiply
    511,022.95x = 767,212.66 × 436,621.21
  4. Step 4: Simplify right side
    511,022.95x = 334,981,319,936.52
  5. Step 5: Solve for x
    x = 334,981,319,936.52/511,022.95
  6. Step 6: Final answer
    x = 655,511.30

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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.