Home / 818,336.51-1,227,697.95-257,371.01

Finding the Fourth Proportional to 818,336.51, 1,227,697.95 and 257,371.01

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Solution

The fourth proportional to 818,336.51, 1,227,697.95 and 257,371.01 is: 386,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,336.51 : 1,227,697.95 = 257,371.01 : x
  2. Step 2: Convert to fraction form
    818,336.51/1,227,697.95 = 257,371.01/x
  3. Step 3: Cross multiply
    818,336.51x = 1,227,697.95 × 257,371.01
  4. Step 4: Simplify right side
    818,336.51x = 315,973,861,366.43
  5. Step 5: Solve for x
    x = 315,973,861,366.43/818,336.51
  6. Step 6: Final answer
    x = 386,117.27

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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.