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Finding the Fourth Proportional to 994,944,784.80, 1,492,608,466.80 and 381,481,168.80

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Solution

The fourth proportional to 994,944,784.80, 1,492,608,466.80 and 381,481,168.80 is: 572,295,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,944,784.80 : 1,492,608,466.80 = 381,481,168.80 : x
  2. Step 2: Convert to fraction form
    994,944,784.80/1,492,608,466.80 = 381,481,168.80/x
  3. Step 3: Cross multiply
    994,944,784.80x = 1,492,608,466.80 × 381,481,168.80
  4. Step 4: Simplify right side
    994,944,784.80x = 569,402,022,475,640,000
  5. Step 5: Solve for x
    x = 569,402,022,475,640,000/994,944,784.80
  6. Step 6: Final answer
    x = 572,295,097.35

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1.5x scale

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.