Home / 928,440.75-1,392,661.14-612,823.84

Finding the Fourth Proportional to 928,440.75, 1,392,661.14 and 612,823.84

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Solution

The fourth proportional to 928,440.75, 1,392,661.14 and 612,823.84 is: 919,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,440.75 : 1,392,661.14 = 612,823.84 : x
  2. Step 2: Convert to fraction form
    928,440.75/1,392,661.14 = 612,823.84/x
  3. Step 3: Cross multiply
    928,440.75x = 1,392,661.14 × 612,823.84
  4. Step 4: Simplify right side
    928,440.75x = 853,455,947,633.58
  5. Step 5: Solve for x
    x = 853,455,947,633.58/928,440.75
  6. Step 6: Final answer
    x = 919,235.77

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Double scale
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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.