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Finding the Fourth Proportional to 1,001,919,301.12, 1,382,601,791.92 and 555,877,917.36

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Solution

The fourth proportional to 1,001,919,301.12, 1,382,601,791.92 and 555,877,917.36 is: 767,085,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,919,301.12 : 1,382,601,791.92 = 555,877,917.36 : x
  2. Step 2: Convert to fraction form
    1,001,919,301.12/1,382,601,791.92 = 555,877,917.36/x
  3. Step 3: Cross multiply
    1,001,919,301.12x = 1,382,601,791.92 × 555,877,917.36
  4. Step 4: Simplify right side
    1,001,919,301.12x = 768,557,804,630,693,760
  5. Step 5: Solve for x
    x = 768,557,804,630,693,760/1,001,919,301.12
  6. Step 6: Final answer
    x = 767,085,536.50

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Double scale
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1.5x scale

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.