Home / 670,391.20-1,005,611.10-197,124.40

Finding the Fourth Proportional to 670,391.20, 1,005,611.10 and 197,124.40

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Solution

The fourth proportional to 670,391.20, 1,005,611.10 and 197,124.40 is: 295,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,391.20 : 1,005,611.10 = 197,124.40 : x
  2. Step 2: Convert to fraction form
    670,391.20/1,005,611.10 = 197,124.40/x
  3. Step 3: Cross multiply
    670,391.20x = 1,005,611.10 × 197,124.40
  4. Step 4: Simplify right side
    670,391.20x = 198,230,484,720.84
  5. Step 5: Solve for x
    x = 198,230,484,720.84/670,391.20
  6. Step 6: Final answer
    x = 295,693.75

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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.