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Finding the Fourth Proportional to 3,192,609.60, 4,788,901.80 and 948,747.60

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Solution

The fourth proportional to 3,192,609.60, 4,788,901.80 and 948,747.60 is: 1,423,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192,609.60 : 4,788,901.80 = 948,747.60 : x
  2. Step 2: Convert to fraction form
    3,192,609.60/4,788,901.80 = 948,747.60/x
  3. Step 3: Cross multiply
    3,192,609.60x = 4,788,901.80 × 948,747.60
  4. Step 4: Simplify right side
    3,192,609.60x = 4,543,459,089,385.68
  5. Step 5: Solve for x
    x = 4,543,459,089,385.68/3,192,609.60
  6. Step 6: Final answer
    x = 1,423,117.66

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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.