Home / 684,986.84-945,258.62-379,076.16

Finding the Fourth Proportional to 684,986.84, 945,258.62 and 379,076.16

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Solution

The fourth proportional to 684,986.84, 945,258.62 and 379,076.16 is: 523,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,986.84 : 945,258.62 = 379,076.16 : x
  2. Step 2: Convert to fraction form
    684,986.84/945,258.62 = 379,076.16/x
  3. Step 3: Cross multiply
    684,986.84x = 945,258.62 × 379,076.16
  4. Step 4: Simplify right side
    684,986.84x = 358,325,005,981.12
  5. Step 5: Solve for x
    x = 358,325,005,981.12/684,986.84
  6. Step 6: Final answer
    x = 523,112.25

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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.