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Finding the Fourth Proportional to 401,030.58, 553,422.34 and 219,741.04

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Solution

The fourth proportional to 401,030.58, 553,422.34 and 219,741.04 is: 303,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,030.58 : 553,422.34 = 219,741.04 : x
  2. Step 2: Convert to fraction form
    401,030.58/553,422.34 = 219,741.04/x
  3. Step 3: Cross multiply
    401,030.58x = 553,422.34 × 219,741.04
  4. Step 4: Simplify right side
    401,030.58x = 121,609,600,550.83
  5. Step 5: Solve for x
    x = 121,609,600,550.83/401,030.58
  6. Step 6: Final answer
    x = 303,242.71

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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.