Home / 840,621.08-1,261,789.38-615,312.26

Finding the Fourth Proportional to 840,621.08, 1,261,789.38 and 615,312.26

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Solution

The fourth proportional to 840,621.08, 1,261,789.38 and 615,312.26 is: 923,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,621.08 : 1,261,789.38 = 615,312.26 : x
  2. Step 2: Convert to fraction form
    840,621.08/1,261,789.38 = 615,312.26/x
  3. Step 3: Cross multiply
    840,621.08x = 1,261,789.38 × 615,312.26
  4. Step 4: Simplify right side
    840,621.08x = 776,394,475,051.80
  5. Step 5: Solve for x
    x = 776,394,475,051.80/840,621.08
  6. Step 6: Final answer
    x = 923,596.25

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1.5x scale

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.