Home / 864,989.96-1,297,721.64-416,086.16

Finding the Fourth Proportional to 864,989.96, 1,297,721.64 and 416,086.16

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Solution

The fourth proportional to 864,989.96, 1,297,721.64 and 416,086.16 is: 624,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,989.96 : 1,297,721.64 = 416,086.16 : x
  2. Step 2: Convert to fraction form
    864,989.96/1,297,721.64 = 416,086.16/x
  3. Step 3: Cross multiply
    864,989.96x = 1,297,721.64 × 416,086.16
  4. Step 4: Simplify right side
    864,989.96x = 539,964,013,936.50
  5. Step 5: Solve for x
    x = 539,964,013,936.50/864,989.96
  6. Step 6: Final answer
    x = 624,243.10

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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.