Home / 981,088.14-1,353,058.59-636,584.70

Finding the Fourth Proportional to 981,088.14, 1,353,058.59 and 636,584.70

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Solution

The fourth proportional to 981,088.14, 1,353,058.59 and 636,584.70 is: 877,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,088.14 : 1,353,058.59 = 636,584.70 : x
  2. Step 2: Convert to fraction form
    981,088.14/1,353,058.59 = 636,584.70/x
  3. Step 3: Cross multiply
    981,088.14x = 1,353,058.59 × 636,584.70
  4. Step 4: Simplify right side
    981,088.14x = 861,336,396,597.57
  5. Step 5: Solve for x
    x = 861,336,396,597.57/981,088.14
  6. Step 6: Final answer
    x = 877,939.87

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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.