Home / 1,685,385-2,325,831.36-911,013.30

Finding the Fourth Proportional to 1,685,385, 2,325,831.36 and 911,013.30

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Solution

The fourth proportional to 1,685,385, 2,325,831.36 and 911,013.30 is: 1,257,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,385 : 2,325,831.36 = 911,013.30 : x
  2. Step 2: Convert to fraction form
    1,685,385/2,325,831.36 = 911,013.30/x
  3. Step 3: Cross multiply
    1,685,385x = 2,325,831.36 × 911,013.30
  4. Step 4: Simplify right side
    1,685,385x = 2,118,863,302,517.09
  5. Step 5: Solve for x
    x = 2,118,863,302,517.09/1,685,385
  6. Step 6: Final answer
    x = 1,257,198.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.