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Finding the Fourth Proportional to 353,828.40, 530,742.60 and 235,114.80

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Solution

The fourth proportional to 353,828.40, 530,742.60 and 235,114.80 is: 352,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,828.40 : 530,742.60 = 235,114.80 : x
  2. Step 2: Convert to fraction form
    353,828.40/530,742.60 = 235,114.80/x
  3. Step 3: Cross multiply
    353,828.40x = 530,742.60 × 235,114.80
  4. Step 4: Simplify right side
    353,828.40x = 124,785,440,250.48
  5. Step 5: Solve for x
    x = 124,785,440,250.48/353,828.40
  6. Step 6: Final answer
    x = 352,672.20

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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.