Home / 1,285,419.58-1,927,630.31-686,054.00

Finding the Fourth Proportional to 1,285,419.58, 1,927,630.31 and 686,054.00

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Solution

The fourth proportional to 1,285,419.58, 1,927,630.31 and 686,054.00 is: 1,028,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,419.58 : 1,927,630.31 = 686,054.00 : x
  2. Step 2: Convert to fraction form
    1,285,419.58/1,927,630.31 = 686,054.00/x
  3. Step 3: Cross multiply
    1,285,419.58x = 1,927,630.31 × 686,054.00
  4. Step 4: Simplify right side
    1,285,419.58x = 1,322,458,486,085.55
  5. Step 5: Solve for x
    x = 1,322,458,486,085.55/1,285,419.58
  6. Step 6: Final answer
    x = 1,028,814.64

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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.