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Finding the Fourth Proportional to 295,463,609.88, 407,747,471.64 and 163,306,692.60

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Solution

The fourth proportional to 295,463,609.88, 407,747,471.64 and 163,306,692.60 is: 225,367,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,463,609.88 : 407,747,471.64 = 163,306,692.60 : x
  2. Step 2: Convert to fraction form
    295,463,609.88/407,747,471.64 = 163,306,692.60/x
  3. Step 3: Cross multiply
    295,463,609.88x = 407,747,471.64 × 163,306,692.60
  4. Step 4: Simplify right side
    295,463,609.88x = 66,587,891,009,540,696
  5. Step 5: Solve for x
    x = 66,587,891,009,540,696/295,463,609.88
  6. Step 6: Final answer
    x = 225,367,486.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.