Home / 817,085.17-1,225,824.63-256,119.67

Finding the Fourth Proportional to 817,085.17, 1,225,824.63 and 256,119.67

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Solution

The fourth proportional to 817,085.17, 1,225,824.63 and 256,119.67 is: 384,241.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,085.17 : 1,225,824.63 = 256,119.67 : x
  2. Step 2: Convert to fraction form
    817,085.17/1,225,824.63 = 256,119.67/x
  3. Step 3: Cross multiply
    817,085.17x = 1,225,824.63 × 256,119.67
  4. Step 4: Simplify right side
    817,085.17x = 313,957,799,713.47
  5. Step 5: Solve for x
    x = 313,957,799,713.47/817,085.17
  6. Step 6: Final answer
    x = 384,241.22

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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.