Home / 945,812.91-1,305,253.32-516,116.61

Finding the Fourth Proportional to 945,812.91, 1,305,253.32 and 516,116.61

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Solution

The fourth proportional to 945,812.91, 1,305,253.32 and 516,116.61 is: 712,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,812.91 : 1,305,253.32 = 516,116.61 : x
  2. Step 2: Convert to fraction form
    945,812.91/1,305,253.32 = 516,116.61/x
  3. Step 3: Cross multiply
    945,812.91x = 1,305,253.32 × 516,116.61
  4. Step 4: Simplify right side
    945,812.91x = 673,662,918,709.65
  5. Step 5: Solve for x
    x = 673,662,918,709.65/945,812.91
  6. Step 6: Final answer
    x = 712,258.11

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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.