Home / 813,186.34-1,122,166.83-469,036.38

Finding the Fourth Proportional to 813,186.34, 1,122,166.83 and 469,036.38

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Solution

The fourth proportional to 813,186.34, 1,122,166.83 and 469,036.38 is: 647,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,186.34 : 1,122,166.83 = 469,036.38 : x
  2. Step 2: Convert to fraction form
    813,186.34/1,122,166.83 = 469,036.38/x
  3. Step 3: Cross multiply
    813,186.34x = 1,122,166.83 × 469,036.38
  4. Step 4: Simplify right side
    813,186.34x = 526,337,065,354.09
  5. Step 5: Solve for x
    x = 526,337,065,354.09/813,186.34
  6. Step 6: Final answer
    x = 647,252.71

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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.