Home / 962,581.70-1,328,585.82-640,305.38

Finding the Fourth Proportional to 962,581.70, 1,328,585.82 and 640,305.38

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Solution

The fourth proportional to 962,581.70, 1,328,585.82 and 640,305.38 is: 883,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,581.70 : 1,328,585.82 = 640,305.38 : x
  2. Step 2: Convert to fraction form
    962,581.70/1,328,585.82 = 640,305.38/x
  3. Step 3: Cross multiply
    962,581.70x = 1,328,585.82 × 640,305.38
  4. Step 4: Simplify right side
    962,581.70x = 850,700,648,337.71
  5. Step 5: Solve for x
    x = 850,700,648,337.71/962,581.70
  6. Step 6: Final answer
    x = 883,769.81

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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.