Home / 654,412.64-981,590.39-205,123.28

Finding the Fourth Proportional to 654,412.64, 981,590.39 and 205,123.28

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Solution

The fourth proportional to 654,412.64, 981,590.39 and 205,123.28 is: 307,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,412.64 : 981,590.39 = 205,123.28 : x
  2. Step 2: Convert to fraction form
    654,412.64/981,590.39 = 205,123.28/x
  3. Step 3: Cross multiply
    654,412.64x = 981,590.39 × 205,123.28
  4. Step 4: Simplify right side
    654,412.64x = 201,347,039,387.66
  5. Step 5: Solve for x
    x = 201,347,039,387.66/654,412.64
  6. Step 6: Final answer
    x = 307,675.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.