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Finding the Fourth Proportional to 245,428.40, 367,624.20 and 245,428.40

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Solution

The fourth proportional to 245,428.40, 367,624.20 and 245,428.40 is: 367,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,428.40 : 367,624.20 = 245,428.40 : x
  2. Step 2: Convert to fraction form
    245,428.40/367,624.20 = 245,428.40/x
  3. Step 3: Cross multiply
    245,428.40x = 367,624.20 × 245,428.40
  4. Step 4: Simplify right side
    245,428.40x = 90,225,419,207.28
  5. Step 5: Solve for x
    x = 90,225,419,207.28/245,428.40
  6. Step 6: Final answer
    x = 367,624.20

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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.