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Finding the Fourth Proportional to 403,958.32, 557,994.92 and 301,806.24

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Solution

The fourth proportional to 403,958.32, 557,994.92 and 301,806.24 is: 416,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,958.32 : 557,994.92 = 301,806.24 : x
  2. Step 2: Convert to fraction form
    403,958.32/557,994.92 = 301,806.24/x
  3. Step 3: Cross multiply
    403,958.32x = 557,994.92 × 301,806.24
  4. Step 4: Simplify right side
    403,958.32x = 168,406,348,744.30
  5. Step 5: Solve for x
    x = 168,406,348,744.30/403,958.32
  6. Step 6: Final answer
    x = 416,890.41

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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.