Home / 629,939.42-869,670.15-436,628.06

Finding the Fourth Proportional to 629,939.42, 869,670.15 and 436,628.06

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Solution

The fourth proportional to 629,939.42, 869,670.15 and 436,628.06 is: 602,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,939.42 : 869,670.15 = 436,628.06 : x
  2. Step 2: Convert to fraction form
    629,939.42/869,670.15 = 436,628.06/x
  3. Step 3: Cross multiply
    629,939.42x = 869,670.15 × 436,628.06
  4. Step 4: Simplify right side
    629,939.42x = 379,722,390,434.41
  5. Step 5: Solve for x
    x = 379,722,390,434.41/629,939.42
  6. Step 6: Final answer
    x = 602,791.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.