Home / 926,605.42-1,278,742.19-518,704.86

Finding the Fourth Proportional to 926,605.42, 1,278,742.19 and 518,704.86

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Solution

The fourth proportional to 926,605.42, 1,278,742.19 and 518,704.86 is: 715,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,605.42 : 1,278,742.19 = 518,704.86 : x
  2. Step 2: Convert to fraction form
    926,605.42/1,278,742.19 = 518,704.86/x
  3. Step 3: Cross multiply
    926,605.42x = 1,278,742.19 × 518,704.86
  4. Step 4: Simplify right side
    926,605.42x = 663,289,793,759.52
  5. Step 5: Solve for x
    x = 663,289,793,759.52/926,605.42
  6. Step 6: Final answer
    x = 715,827.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.