Home / 823,146.35-1,240,889.17-768,280.01

Finding the Fourth Proportional to 823,146.35, 1,240,889.17 and 768,280.01

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Solution

The fourth proportional to 823,146.35, 1,240,889.17 and 768,280.01 is: 1,158,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,146.35 : 1,240,889.17 = 768,280.01 : x
  2. Step 2: Convert to fraction form
    823,146.35/1,240,889.17 = 768,280.01/x
  3. Step 3: Cross multiply
    823,146.35x = 1,240,889.17 × 768,280.01
  4. Step 4: Simplify right side
    823,146.35x = 953,350,340,095.09
  5. Step 5: Solve for x
    x = 953,350,340,095.09/823,146.35
  6. Step 6: Final answer
    x = 1,158,178.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.