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Finding the Fourth Proportional to 1,149,868.40, 1,724,495.40 and 401,836.40

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Solution

The fourth proportional to 1,149,868.40, 1,724,495.40 and 401,836.40 is: 602,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,868.40 : 1,724,495.40 = 401,836.40 : x
  2. Step 2: Convert to fraction form
    1,149,868.40/1,724,495.40 = 401,836.40/x
  3. Step 3: Cross multiply
    1,149,868.40x = 1,724,495.40 × 401,836.40
  4. Step 4: Simplify right side
    1,149,868.40x = 692,965,023,352.56
  5. Step 5: Solve for x
    x = 692,965,023,352.56/1,149,868.40
  6. Step 6: Final answer
    x = 602,647.24

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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.