Home / 1,112,718.18-1,668,640.56-392,906.40

Finding the Fourth Proportional to 1,112,718.18, 1,668,640.56 and 392,906.40

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Solution

The fourth proportional to 1,112,718.18, 1,668,640.56 and 392,906.40 is: 589,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,718.18 : 1,668,640.56 = 392,906.40 : x
  2. Step 2: Convert to fraction form
    1,112,718.18/1,668,640.56 = 392,906.40/x
  3. Step 3: Cross multiply
    1,112,718.18x = 1,668,640.56 × 392,906.40
  4. Step 4: Simplify right side
    1,112,718.18x = 655,619,555,323.58
  5. Step 5: Solve for x
    x = 655,619,555,323.58/1,112,718.18
  6. Step 6: Final answer
    x = 589,205.40

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Double scale
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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.