Home / 677,133.76-1,015,405.35-256,114.39

Finding the Fourth Proportional to 677,133.76, 1,015,405.35 and 256,114.39

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Solution

The fourth proportional to 677,133.76, 1,015,405.35 and 256,114.39 is: 384,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,133.76 : 1,015,405.35 = 256,114.39 : x
  2. Step 2: Convert to fraction form
    677,133.76/1,015,405.35 = 256,114.39/x
  3. Step 3: Cross multiply
    677,133.76x = 1,015,405.35 × 256,114.39
  4. Step 4: Simplify right side
    677,133.76x = 260,059,921,663.57
  5. Step 5: Solve for x
    x = 260,059,921,663.57/677,133.76
  6. Step 6: Final answer
    x = 384,059.90

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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.