Home / 840,705.26-1,160,198.81-478,181.25

Finding the Fourth Proportional to 840,705.26, 1,160,198.81 and 478,181.25

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Solution

The fourth proportional to 840,705.26, 1,160,198.81 and 478,181.25 is: 659,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,705.26 : 1,160,198.81 = 478,181.25 : x
  2. Step 2: Convert to fraction form
    840,705.26/1,160,198.81 = 478,181.25/x
  3. Step 3: Cross multiply
    840,705.26x = 1,160,198.81 × 478,181.25
  4. Step 4: Simplify right side
    840,705.26x = 554,785,314,823.41
  5. Step 5: Solve for x
    x = 554,785,314,823.41/840,705.26
  6. Step 6: Final answer
    x = 659,904.66

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1.5x scale

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.