Home / 677,136.84-1,015,409.96-256,117.47

Finding the Fourth Proportional to 677,136.84, 1,015,409.96 and 256,117.47

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Solution

The fourth proportional to 677,136.84, 1,015,409.96 and 256,117.47 is: 384,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,136.84 : 1,015,409.96 = 256,117.47 : x
  2. Step 2: Convert to fraction form
    677,136.84/1,015,409.96 = 256,117.47/x
  3. Step 3: Cross multiply
    677,136.84x = 1,015,409.96 × 256,117.47
  4. Step 4: Simplify right side
    677,136.84x = 260,064,229,968.00
  5. Step 5: Solve for x
    x = 260,064,229,968.00/677,136.84
  6. Step 6: Final answer
    x = 384,064.51

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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.