Home / 670,010.90-1,005,145.95-196,711.70

Finding the Fourth Proportional to 670,010.90, 1,005,145.95 and 196,711.70

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Solution

The fourth proportional to 670,010.90, 1,005,145.95 and 196,711.70 is: 295,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,010.90 : 1,005,145.95 = 196,711.70 : x
  2. Step 2: Convert to fraction form
    670,010.90/1,005,145.95 = 196,711.70/x
  3. Step 3: Cross multiply
    670,010.90x = 1,005,145.95 × 196,711.70
  4. Step 4: Simplify right side
    670,010.90x = 197,723,968,572.62
  5. Step 5: Solve for x
    x = 197,723,968,572.62/670,010.90
  6. Step 6: Final answer
    x = 295,105.60

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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.