Home / 811,367.94-1,118,669.85-520,466.61

Finding the Fourth Proportional to 811,367.94, 1,118,669.85 and 520,466.61

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Solution

The fourth proportional to 811,367.94, 1,118,669.85 and 520,466.61 is: 717,590.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,367.94 : 1,118,669.85 = 520,466.61 : x
  2. Step 2: Convert to fraction form
    811,367.94/1,118,669.85 = 520,466.61/x
  3. Step 3: Cross multiply
    811,367.94x = 1,118,669.85 × 520,466.61
  4. Step 4: Simplify right side
    811,367.94x = 582,230,304,538.71
  5. Step 5: Solve for x
    x = 582,230,304,538.71/811,367.94
  6. Step 6: Final answer
    x = 717,590.97

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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.