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Finding the Fourth Proportional to 996,693.40, 1,494,797.10 and 286,647.40

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Solution

The fourth proportional to 996,693.40, 1,494,797.10 and 286,647.40 is: 429,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,693.40 : 1,494,797.10 = 286,647.40 : x
  2. Step 2: Convert to fraction form
    996,693.40/1,494,797.10 = 286,647.40/x
  3. Step 3: Cross multiply
    996,693.40x = 1,494,797.10 × 286,647.40
  4. Step 4: Simplify right side
    996,693.40x = 428,479,702,242.54
  5. Step 5: Solve for x
    x = 428,479,702,242.54/996,693.40
  6. Step 6: Final answer
    x = 429,901.21

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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.