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Finding the Fourth Proportional to 1,365,762.53, 1,884,741.28 and 753,914.40

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Solution

The fourth proportional to 1,365,762.53, 1,884,741.28 and 753,914.40 is: 1,040,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,762.53 : 1,884,741.28 = 753,914.40 : x
  2. Step 2: Convert to fraction form
    1,365,762.53/1,884,741.28 = 753,914.40/x
  3. Step 3: Cross multiply
    1,365,762.53x = 1,884,741.28 × 753,914.40
  4. Step 4: Simplify right side
    1,365,762.53x = 1,420,933,589,381.65
  5. Step 5: Solve for x
    x = 1,420,933,589,381.65/1,365,762.53
  6. Step 6: Final answer
    x = 1,040,395.80

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Why These Related Problems?

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