Home / 662,029.20-993,043.80-396,608.40

Finding the Fourth Proportional to 662,029.20, 993,043.80 and 396,608.40

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Solution

The fourth proportional to 662,029.20, 993,043.80 and 396,608.40 is: 594,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,029.20 : 993,043.80 = 396,608.40 : x
  2. Step 2: Convert to fraction form
    662,029.20/993,043.80 = 396,608.40/x
  3. Step 3: Cross multiply
    662,029.20x = 993,043.80 × 396,608.40
  4. Step 4: Simplify right side
    662,029.20x = 393,849,512,647.92
  5. Step 5: Solve for x
    x = 393,849,512,647.92/662,029.20
  6. Step 6: Final answer
    x = 594,912.60

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Double scale
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Similar ratio
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1.5x scale

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.