Home / 711,199.39-981,404.76-405,266.04

Finding the Fourth Proportional to 711,199.39, 981,404.76 and 405,266.04

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Solution

The fourth proportional to 711,199.39, 981,404.76 and 405,266.04 is: 559,238.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,199.39 : 981,404.76 = 405,266.04 : x
  2. Step 2: Convert to fraction form
    711,199.39/981,404.76 = 405,266.04/x
  3. Step 3: Cross multiply
    711,199.39x = 981,404.76 × 405,266.04
  4. Step 4: Simplify right side
    711,199.39x = 397,730,020,722.35
  5. Step 5: Solve for x
    x = 397,730,020,722.35/711,199.39
  6. Step 6: Final answer
    x = 559,238.42

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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.