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Finding the Fourth Proportional to 983,145.60, 1,474,718.40 and 883,418.40

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Solution

The fourth proportional to 983,145.60, 1,474,718.40 and 883,418.40 is: 1,325,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,145.60 : 1,474,718.40 = 883,418.40 : x
  2. Step 2: Convert to fraction form
    983,145.60/1,474,718.40 = 883,418.40/x
  3. Step 3: Cross multiply
    983,145.60x = 1,474,718.40 × 883,418.40
  4. Step 4: Simplify right side
    983,145.60x = 1,302,793,369,378.56
  5. Step 5: Solve for x
    x = 1,302,793,369,378.56/983,145.60
  6. Step 6: Final answer
    x = 1,325,127.60

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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.