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Finding the Fourth Proportional to 1,796,641,378.80, 2,695,969,837.80 and 761,326,076.40

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Solution

The fourth proportional to 1,796,641,378.80, 2,695,969,837.80 and 761,326,076.40 is: 1,142,416,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,641,378.80 : 2,695,969,837.80 = 761,326,076.40 : x
  2. Step 2: Convert to fraction form
    1,796,641,378.80/2,695,969,837.80 = 761,326,076.40/x
  3. Step 3: Cross multiply
    1,796,641,378.80x = 2,695,969,837.80 × 761,326,076.40
  4. Step 4: Simplify right side
    1,796,641,378.80x = 2,052,512,138,705,018,368
  5. Step 5: Solve for x
    x = 2,052,512,138,705,018,368/1,796,641,378.80
  6. Step 6: Final answer
    x = 1,142,416,156.57

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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.