Home / 644,673.09-966,675.90-289,381.17

Finding the Fourth Proportional to 644,673.09, 966,675.90 and 289,381.17

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Solution

The fourth proportional to 644,673.09, 966,675.90 and 289,381.17 is: 433,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,673.09 : 966,675.90 = 289,381.17 : x
  2. Step 2: Convert to fraction form
    644,673.09/966,675.90 = 289,381.17/x
  3. Step 3: Cross multiply
    644,673.09x = 966,675.90 × 289,381.17
  4. Step 4: Simplify right side
    644,673.09x = 279,737,802,952.80
  5. Step 5: Solve for x
    x = 279,737,802,952.80/644,673.09
  6. Step 6: Final answer
    x = 433,921.95

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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.