Home / 1,085,406.89-1,628,188.09-286,680.47

Finding the Fourth Proportional to 1,085,406.89, 1,628,188.09 and 286,680.47

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Solution

The fourth proportional to 1,085,406.89, 1,628,188.09 and 286,680.47 is: 430,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,406.89 : 1,628,188.09 = 286,680.47 : x
  2. Step 2: Convert to fraction form
    1,085,406.89/1,628,188.09 = 286,680.47/x
  3. Step 3: Cross multiply
    1,085,406.89x = 1,628,188.09 × 286,680.47
  4. Step 4: Simplify right side
    1,085,406.89x = 466,769,718,031.96
  5. Step 5: Solve for x
    x = 466,769,718,031.96/1,085,406.89
  6. Step 6: Final answer
    x = 430,041.24

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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.