Home / 665,868.91-999,514.13-286,976.63

Finding the Fourth Proportional to 665,868.91, 999,514.13 and 286,976.63

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Solution

The fourth proportional to 665,868.91, 999,514.13 and 286,976.63 is: 430,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,868.91 : 999,514.13 = 286,976.63 : x
  2. Step 2: Convert to fraction form
    665,868.91/999,514.13 = 286,976.63/x
  3. Step 3: Cross multiply
    665,868.91x = 999,514.13 × 286,976.63
  4. Step 4: Simplify right side
    665,868.91x = 286,837,192,384.65
  5. Step 5: Solve for x
    x = 286,837,192,384.65/665,868.91
  6. Step 6: Final answer
    x = 430,771.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.