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Finding the Fourth Proportional to 269,657,152.40, 404,485,728.60 and 262,098,880.40

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Solution

The fourth proportional to 269,657,152.40, 404,485,728.60 and 262,098,880.40 is: 393,148,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,657,152.40 : 404,485,728.60 = 262,098,880.40 : x
  2. Step 2: Convert to fraction form
    269,657,152.40/404,485,728.60 = 262,098,880.40/x
  3. Step 3: Cross multiply
    269,657,152.40x = 404,485,728.60 × 262,098,880.40
  4. Step 4: Simplify right side
    269,657,152.40x = 106,015,256,603,838,272
  5. Step 5: Solve for x
    x = 106,015,256,603,838,272/269,657,152.40
  6. Step 6: Final answer
    x = 393,148,320.60

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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.