Home / 864,986.12-1,297,603.20-265,997.60

Finding the Fourth Proportional to 864,986.12, 1,297,603.20 and 265,997.60

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Solution

The fourth proportional to 864,986.12, 1,297,603.20 and 265,997.60 is: 399,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,986.12 : 1,297,603.20 = 265,997.60 : x
  2. Step 2: Convert to fraction form
    864,986.12/1,297,603.20 = 265,997.60/x
  3. Step 3: Cross multiply
    864,986.12x = 1,297,603.20 × 265,997.60
  4. Step 4: Simplify right side
    864,986.12x = 345,159,336,952.32
  5. Step 5: Solve for x
    x = 345,159,336,952.32/864,986.12
  6. Step 6: Final answer
    x = 399,034.54

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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.