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Finding the Fourth Proportional to 396,030.40, 594,045.60 and 146,809.60

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Solution

The fourth proportional to 396,030.40, 594,045.60 and 146,809.60 is: 220,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,030.40 : 594,045.60 = 146,809.60 : x
  2. Step 2: Convert to fraction form
    396,030.40/594,045.60 = 146,809.60/x
  3. Step 3: Cross multiply
    396,030.40x = 594,045.60 × 146,809.60
  4. Step 4: Simplify right side
    396,030.40x = 87,211,596,917.76
  5. Step 5: Solve for x
    x = 87,211,596,917.76/396,030.40
  6. Step 6: Final answer
    x = 220,214.40

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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.