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Finding the Fourth Proportional to 363,383.21, 501,485.24 and 210,428.08

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Solution

The fourth proportional to 363,383.21, 501,485.24 and 210,428.08 is: 290,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,383.21 : 501,485.24 = 210,428.08 : x
  2. Step 2: Convert to fraction form
    363,383.21/501,485.24 = 210,428.08/x
  3. Step 3: Cross multiply
    363,383.21x = 501,485.24 × 210,428.08
  4. Step 4: Simplify right side
    363,383.21x = 105,526,575,473.90
  5. Step 5: Solve for x
    x = 105,526,575,473.90/363,383.21
  6. Step 6: Final answer
    x = 290,400.25

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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.