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Finding the Fourth Proportional to 455,891,520.80, 684,173,204.40 and 183,457,805.60

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Solution

The fourth proportional to 455,891,520.80, 684,173,204.40 and 183,457,805.60 is: 275,321,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,891,520.80 : 684,173,204.40 = 183,457,805.60 : x
  2. Step 2: Convert to fraction form
    455,891,520.80/684,173,204.40 = 183,457,805.60/x
  3. Step 3: Cross multiply
    455,891,520.80x = 684,173,204.40 × 183,457,805.60
  4. Step 4: Simplify right side
    455,891,520.80x = 125,516,914,729,544,256
  5. Step 5: Solve for x
    x = 125,516,914,729,544,256/455,891,520.80
  6. Step 6: Final answer
    x = 275,321,889.10

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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.