Home / 711,544.67-981,939.39-389,247.84

Finding the Fourth Proportional to 711,544.67, 981,939.39 and 389,247.84

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Solution

The fourth proportional to 711,544.67, 981,939.39 and 389,247.84 is: 537,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,544.67 : 981,939.39 = 389,247.84 : x
  2. Step 2: Convert to fraction form
    711,544.67/981,939.39 = 389,247.84/x
  3. Step 3: Cross multiply
    711,544.67x = 981,939.39 × 389,247.84
  4. Step 4: Simplify right side
    711,544.67x = 382,217,786,568.42
  5. Step 5: Solve for x
    x = 382,217,786,568.42/711,544.67
  6. Step 6: Final answer
    x = 537,166.26

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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.