Home / 677,133.55-1,015,405.04-256,114.18

Finding the Fourth Proportional to 677,133.55, 1,015,405.04 and 256,114.18

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Solution

The fourth proportional to 677,133.55, 1,015,405.04 and 256,114.18 is: 384,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,133.55 : 1,015,405.04 = 256,114.18 : x
  2. Step 2: Convert to fraction form
    677,133.55/1,015,405.04 = 256,114.18/x
  3. Step 3: Cross multiply
    677,133.55x = 1,015,405.04 × 256,114.18
  4. Step 4: Simplify right side
    677,133.55x = 260,059,626,440.39
  5. Step 5: Solve for x
    x = 260,059,626,440.39/677,133.55
  6. Step 6: Final answer
    x = 384,059.58

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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.