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Finding the Fourth Proportional to 970,092.40, 1,454,879.40 and 338,940.40

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Solution

The fourth proportional to 970,092.40, 1,454,879.40 and 338,940.40 is: 508,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,092.40 : 1,454,879.40 = 338,940.40 : x
  2. Step 2: Convert to fraction form
    970,092.40/1,454,879.40 = 338,940.40/x
  3. Step 3: Cross multiply
    970,092.40x = 1,454,879.40 × 338,940.40
  4. Step 4: Simplify right side
    970,092.40x = 493,117,405,787.76
  5. Step 5: Solve for x
    x = 493,117,405,787.76/970,092.40
  6. Step 6: Final answer
    x = 508,320.04

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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.