Home / 677,136.74-1,015,409.81-256,117.37

Finding the Fourth Proportional to 677,136.74, 1,015,409.81 and 256,117.37

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Solution

The fourth proportional to 677,136.74, 1,015,409.81 and 256,117.37 is: 384,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,136.74 : 1,015,409.81 = 256,117.37 : x
  2. Step 2: Convert to fraction form
    677,136.74/1,015,409.81 = 256,117.37/x
  3. Step 3: Cross multiply
    677,136.74x = 1,015,409.81 × 256,117.37
  4. Step 4: Simplify right side
    677,136.74x = 260,064,085,572.64
  5. Step 5: Solve for x
    x = 260,064,085,572.64/677,136.74
  6. Step 6: Final answer
    x = 384,064.36

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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.