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Finding the Fourth Proportional to 196,992,001.20, 295,488,001.80 and 186,410,420.40

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Solution

The fourth proportional to 196,992,001.20, 295,488,001.80 and 186,410,420.40 is: 279,615,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992,001.20 : 295,488,001.80 = 186,410,420.40 : x
  2. Step 2: Convert to fraction form
    196,992,001.20/295,488,001.80 = 186,410,420.40/x
  3. Step 3: Cross multiply
    196,992,001.20x = 295,488,001.80 × 186,410,420.40
  4. Step 4: Simplify right side
    196,992,001.20x = 55,082,042,638,693,960
  5. Step 5: Solve for x
    x = 55,082,042,638,693,960/196,992,001.20
  6. Step 6: Final answer
    x = 279,615,630.60

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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.