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Finding the Fourth Proportional to 1,375,924,039.56, 1,898,658,538.20 and 773,047,462.32

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Solution

The fourth proportional to 1,375,924,039.56, 1,898,658,538.20 and 773,047,462.32 is: 1,066,739,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,924,039.56 : 1,898,658,538.20 = 773,047,462.32 : x
  2. Step 2: Convert to fraction form
    1,375,924,039.56/1,898,658,538.20 = 773,047,462.32/x
  3. Step 3: Cross multiply
    1,375,924,039.56x = 1,898,658,538.20 × 773,047,462.32
  4. Step 4: Simplify right side
    1,375,924,039.56x = 1,467,753,164,767,710,976
  5. Step 5: Solve for x
    x = 1,467,753,164,767,710,976/1,375,924,039.56
  6. Step 6: Final answer
    x = 1,066,739,967.15

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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.