Home / 403,928.17-557,395.53-222,630.12

Finding the Fourth Proportional to 403,928.17, 557,395.53 and 222,630.12

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Solution

The fourth proportional to 403,928.17, 557,395.53 and 222,630.12 is: 307,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,928.17 : 557,395.53 = 222,630.12 : x
  2. Step 2: Convert to fraction form
    403,928.17/557,395.53 = 222,630.12/x
  3. Step 3: Cross multiply
    403,928.17x = 557,395.53 × 222,630.12
  4. Step 4: Simplify right side
    403,928.17x = 124,093,032,896.50
  5. Step 5: Solve for x
    x = 124,093,032,896.50/403,928.17
  6. Step 6: Final answer
    x = 307,215.60

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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.