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Finding the Fourth Proportional to 873,429.75, 1,205,806.16 and 612,586.11

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Solution

The fourth proportional to 873,429.75, 1,205,806.16 and 612,586.11 is: 845,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,429.75 : 1,205,806.16 = 612,586.11 : x
  2. Step 2: Convert to fraction form
    873,429.75/1,205,806.16 = 612,586.11/x
  3. Step 3: Cross multiply
    873,429.75x = 1,205,806.16 × 612,586.11
  4. Step 4: Simplify right side
    873,429.75x = 738,660,095,876.48
  5. Step 5: Solve for x
    x = 738,660,095,876.48/873,429.75
  6. Step 6: Final answer
    x = 845,700.64

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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.