Home / 685,815.50-946,206.68-444,283.22

Finding the Fourth Proportional to 685,815.50, 946,206.68 and 444,283.22

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Solution

The fourth proportional to 685,815.50, 946,206.68 and 444,283.22 is: 612,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,815.50 : 946,206.68 = 444,283.22 : x
  2. Step 2: Convert to fraction form
    685,815.50/946,206.68 = 444,283.22/x
  3. Step 3: Cross multiply
    685,815.50x = 946,206.68 × 444,283.22
  4. Step 4: Simplify right side
    685,815.50x = 420,383,750,575.91
  5. Step 5: Solve for x
    x = 420,383,750,575.91/685,815.50
  6. Step 6: Final answer
    x = 612,969.16

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Double scale
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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.