Home / 817,082.68-1,225,820.88-256,117.18

Finding the Fourth Proportional to 817,082.68, 1,225,820.88 and 256,117.18

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Solution

The fourth proportional to 817,082.68, 1,225,820.88 and 256,117.18 is: 384,237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,082.68 : 1,225,820.88 = 256,117.18 : x
  2. Step 2: Convert to fraction form
    817,082.68/1,225,820.88 = 256,117.18/x
  3. Step 3: Cross multiply
    817,082.68x = 1,225,820.88 × 256,117.18
  4. Step 4: Simplify right side
    817,082.68x = 313,953,786,970.72
  5. Step 5: Solve for x
    x = 313,953,786,970.72/817,082.68
  6. Step 6: Final answer
    x = 384,237.48

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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.