Home / 705,344,975.20-1,057,012,682.16-519,652,112.32

Finding the Fourth Proportional to 705,344,975.20, 1,057,012,682.16 and 519,652,112.32

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Solution

The fourth proportional to 705,344,975.20, 1,057,012,682.16 and 519,652,112.32 is: 778,737,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,344,975.20 : 1,057,012,682.16 = 519,652,112.32 : x
  2. Step 2: Convert to fraction form
    705,344,975.20/1,057,012,682.16 = 519,652,112.32/x
  3. Step 3: Cross multiply
    705,344,975.20x = 1,057,012,682.16 × 519,652,112.32
  4. Step 4: Simplify right side
    705,344,975.20x = 549,278,873,033,472,768
  5. Step 5: Solve for x
    x = 549,278,873,033,472,768/705,344,975.20
  6. Step 6: Final answer
    x = 778,737,911.73

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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.