Home / 811,653.15-1,120,007.66-467,397.39

Finding the Fourth Proportional to 811,653.15, 1,120,007.66 and 467,397.39

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Solution

The fourth proportional to 811,653.15, 1,120,007.66 and 467,397.39 is: 644,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,653.15 : 1,120,007.66 = 467,397.39 : x
  2. Step 2: Convert to fraction form
    811,653.15/1,120,007.66 = 467,397.39/x
  3. Step 3: Cross multiply
    811,653.15x = 1,120,007.66 × 467,397.39
  4. Step 4: Simplify right side
    811,653.15x = 523,488,654,727.02
  5. Step 5: Solve for x
    x = 523,488,654,727.02/811,653.15
  6. Step 6: Final answer
    x = 644,965.96

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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.