Home / 286,020.09-394,706.67-156,960.77

Finding the Fourth Proportional to 286,020.09, 394,706.67 and 156,960.77

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Solution

The fourth proportional to 286,020.09, 394,706.67 and 156,960.77 is: 216,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,020.09 : 394,706.67 = 156,960.77 : x
  2. Step 2: Convert to fraction form
    286,020.09/394,706.67 = 156,960.77/x
  3. Step 3: Cross multiply
    286,020.09x = 394,706.67 × 156,960.77
  4. Step 4: Simplify right side
    286,020.09x = 61,953,460,873.80
  5. Step 5: Solve for x
    x = 61,953,460,873.80/286,020.09
  6. Step 6: Final answer
    x = 216,605.28

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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.