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Finding the Fourth Proportional to 966,790.90, 1,334,172.90 and 537,059.98

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Solution

The fourth proportional to 966,790.90, 1,334,172.90 and 537,059.98 is: 741,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,790.90 : 1,334,172.90 = 537,059.98 : x
  2. Step 2: Convert to fraction form
    966,790.90/1,334,172.90 = 537,059.98/x
  3. Step 3: Cross multiply
    966,790.90x = 1,334,172.90 × 537,059.98
  4. Step 4: Simplify right side
    966,790.90x = 716,530,870,990.54
  5. Step 5: Solve for x
    x = 716,530,870,990.54/966,790.90
  6. Step 6: Final answer
    x = 741,143.58

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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.