Home / 3,105,432.86-4,289,084.19-2,071,143.60

Finding the Fourth Proportional to 3,105,432.86, 4,289,084.19 and 2,071,143.60

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Solution

The fourth proportional to 3,105,432.86, 4,289,084.19 and 2,071,143.60 is: 2,860,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,432.86 : 4,289,084.19 = 2,071,143.60 : x
  2. Step 2: Convert to fraction form
    3,105,432.86/4,289,084.19 = 2,071,143.60/x
  3. Step 3: Cross multiply
    3,105,432.86x = 4,289,084.19 × 2,071,143.60
  4. Step 4: Simplify right side
    3,105,432.86x = 8,883,309,269,979.69
  5. Step 5: Solve for x
    x = 8,883,309,269,979.69/3,105,432.86
  6. Step 6: Final answer
    x = 2,860,570.39

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.