Home / 665,868.84-999,514.04-286,976.56

Finding the Fourth Proportional to 665,868.84, 999,514.04 and 286,976.56

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Solution

The fourth proportional to 665,868.84, 999,514.04 and 286,976.56 is: 430,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,868.84 : 999,514.04 = 286,976.56 : x
  2. Step 2: Convert to fraction form
    665,868.84/999,514.04 = 286,976.56/x
  3. Step 3: Cross multiply
    665,868.84x = 999,514.04 × 286,976.56
  4. Step 4: Simplify right side
    665,868.84x = 286,837,100,870.90
  5. Step 5: Solve for x
    x = 286,837,100,870.90/665,868.84
  6. Step 6: Final answer
    x = 430,771.17

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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.