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Finding the Fourth Proportional to 994,459.40, 1,489,932.30 and 961,569.80

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Solution

The fourth proportional to 994,459.40, 1,489,932.30 and 961,569.80 is: 1,440,656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,459.40 : 1,489,932.30 = 961,569.80 : x
  2. Step 2: Convert to fraction form
    994,459.40/1,489,932.30 = 961,569.80/x
  3. Step 3: Cross multiply
    994,459.40x = 1,489,932.30 × 961,569.80
  4. Step 4: Simplify right side
    994,459.40x = 1,432,673,903,724.54
  5. Step 5: Solve for x
    x = 1,432,673,903,724.54/994,459.40
  6. Step 6: Final answer
    x = 1,440,656.00

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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.