Home / 286,988.37-396,590.14-215,243.83

Finding the Fourth Proportional to 286,988.37, 396,590.14 and 215,243.83

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Solution

The fourth proportional to 286,988.37, 396,590.14 and 215,243.83 is: 297,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,988.37 : 396,590.14 = 215,243.83 : x
  2. Step 2: Convert to fraction form
    286,988.37/396,590.14 = 215,243.83/x
  3. Step 3: Cross multiply
    286,988.37x = 396,590.14 × 215,243.83
  4. Step 4: Simplify right side
    286,988.37x = 85,363,581,438.63
  5. Step 5: Solve for x
    x = 85,363,581,438.63/286,988.37
  6. Step 6: Final answer
    x = 297,446.14

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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.