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Finding the Fourth Proportional to 978,734.80, 1,466,935.80 and 410,114.80

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Solution

The fourth proportional to 978,734.80, 1,466,935.80 and 410,114.80 is: 614,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,734.80 : 1,466,935.80 = 410,114.80 : x
  2. Step 2: Convert to fraction form
    978,734.80/1,466,935.80 = 410,114.80/x
  3. Step 3: Cross multiply
    978,734.80x = 1,466,935.80 × 410,114.80
  4. Step 4: Simplify right side
    978,734.80x = 601,612,082,229.84
  5. Step 5: Solve for x
    x = 601,612,082,229.84/978,734.80
  6. Step 6: Final answer
    x = 614,683.45

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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.