Home / 644,652.09-966,644.42-289,360.17

Finding the Fourth Proportional to 644,652.09, 966,644.42 and 289,360.17

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Solution

The fourth proportional to 644,652.09, 966,644.42 and 289,360.17 is: 433,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,652.09 : 966,644.42 = 289,360.17 : x
  2. Step 2: Convert to fraction form
    644,652.09/966,644.42 = 289,360.17/x
  3. Step 3: Cross multiply
    644,652.09x = 966,644.42 × 289,360.17
  4. Step 4: Simplify right side
    644,652.09x = 279,708,392,253.95
  5. Step 5: Solve for x
    x = 279,708,392,253.95/644,652.09
  6. Step 6: Final answer
    x = 433,890.46

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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.