Home / 711,151.98-981,400.23-481,779.42

Finding the Fourth Proportional to 711,151.98, 981,400.23 and 481,779.42

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Solution

The fourth proportional to 711,151.98, 981,400.23 and 481,779.42 is: 664,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,151.98 : 981,400.23 = 481,779.42 : x
  2. Step 2: Convert to fraction form
    711,151.98/981,400.23 = 481,779.42/x
  3. Step 3: Cross multiply
    711,151.98x = 981,400.23 × 481,779.42
  4. Step 4: Simplify right side
    711,151.98x = 472,818,433,597.27
  5. Step 5: Solve for x
    x = 472,818,433,597.27/711,151.98
  6. Step 6: Final answer
    x = 664,862.71

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Double scale
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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.