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Finding the Fourth Proportional to 1,353,786.60, 1,868,221.62 and 750,174.60

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Solution

The fourth proportional to 1,353,786.60, 1,868,221.62 and 750,174.60 is: 1,035,238.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,786.60 : 1,868,221.62 = 750,174.60 : x
  2. Step 2: Convert to fraction form
    1,353,786.60/1,868,221.62 = 750,174.60/x
  3. Step 3: Cross multiply
    1,353,786.60x = 1,868,221.62 × 750,174.60
  4. Step 4: Simplify right side
    1,353,786.60x = 1,401,492,406,494.85
  5. Step 5: Solve for x
    x = 1,401,492,406,494.85/1,353,786.60
  6. Step 6: Final answer
    x = 1,035,238.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.