Home / 684,971.41-945,246.40-379,047.60

Finding the Fourth Proportional to 684,971.41, 945,246.40 and 379,047.60

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Solution

The fourth proportional to 684,971.41, 945,246.40 and 379,047.60 is: 523,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,971.41 : 945,246.40 = 379,047.60 : x
  2. Step 2: Convert to fraction form
    684,971.41/945,246.40 = 379,047.60/x
  3. Step 3: Cross multiply
    684,971.41x = 945,246.40 × 379,047.60
  4. Step 4: Simplify right side
    684,971.41x = 358,293,379,328.64
  5. Step 5: Solve for x
    x = 358,293,379,328.64/684,971.41
  6. Step 6: Final answer
    x = 523,077.86

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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.