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Finding the Fourth Proportional to 353,372.40, 530,317.80 and 235,004.40

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Solution

The fourth proportional to 353,372.40, 530,317.80 and 235,004.40 is: 352,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,372.40 : 530,317.80 = 235,004.40 : x
  2. Step 2: Convert to fraction form
    353,372.40/530,317.80 = 235,004.40/x
  3. Step 3: Cross multiply
    353,372.40x = 530,317.80 × 235,004.40
  4. Step 4: Simplify right side
    353,372.40x = 124,627,016,398.32
  5. Step 5: Solve for x
    x = 124,627,016,398.32/353,372.40
  6. Step 6: Final answer
    x = 352,678.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.