Home / 629,931.13-869,149.07-384,852.80

Finding the Fourth Proportional to 629,931.13, 869,149.07 and 384,852.80

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Solution

The fourth proportional to 629,931.13, 869,149.07 and 384,852.80 is: 531,001.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,931.13 : 869,149.07 = 384,852.80 : x
  2. Step 2: Convert to fraction form
    629,931.13/869,149.07 = 384,852.80/x
  3. Step 3: Cross multiply
    629,931.13x = 869,149.07 × 384,852.80
  4. Step 4: Simplify right side
    629,931.13x = 334,494,454,898.70
  5. Step 5: Solve for x
    x = 334,494,454,898.70/629,931.13
  6. Step 6: Final answer
    x = 531,001.63

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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.