Home / 644,675.70-966,412.32-217,914.59

Finding the Fourth Proportional to 644,675.70, 966,412.32 and 217,914.59

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Solution

The fourth proportional to 644,675.70, 966,412.32 and 217,914.59 is: 326,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,675.70 : 966,412.32 = 217,914.59 : x
  2. Step 2: Convert to fraction form
    644,675.70/966,412.32 = 217,914.59/x
  3. Step 3: Cross multiply
    644,675.70x = 966,412.32 × 217,914.59
  4. Step 4: Simplify right side
    644,675.70x = 210,595,344,483.75
  5. Step 5: Solve for x
    x = 210,595,344,483.75/644,675.70
  6. Step 6: Final answer
    x = 326,668.66

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1.5x scale

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.