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Finding the Fourth Proportional to 403,999.47, 557,494.25 and 222,702.03

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Solution

The fourth proportional to 403,999.47, 557,494.25 and 222,702.03 is: 307,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,999.47 : 557,494.25 = 222,702.03 : x
  2. Step 2: Convert to fraction form
    403,999.47/557,494.25 = 222,702.03/x
  3. Step 3: Cross multiply
    403,999.47x = 557,494.25 × 222,702.03
  4. Step 4: Simplify right side
    403,999.47x = 124,155,100,074.82
  5. Step 5: Solve for x
    x = 124,155,100,074.82/403,999.47
  6. Step 6: Final answer
    x = 307,315.01

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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.