Home / 928,000.35-1,391,999.45-254,086.83

Finding the Fourth Proportional to 928,000.35, 1,391,999.45 and 254,086.83

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Solution

The fourth proportional to 928,000.35, 1,391,999.45 and 254,086.83 is: 381,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,000.35 : 1,391,999.45 = 254,086.83 : x
  2. Step 2: Convert to fraction form
    928,000.35/1,391,999.45 = 254,086.83/x
  3. Step 3: Cross multiply
    928,000.35x = 1,391,999.45 × 254,086.83
  4. Step 4: Simplify right side
    928,000.35x = 353,688,726,341.81
  5. Step 5: Solve for x
    x = 353,688,726,341.81/928,000.35
  6. Step 6: Final answer
    x = 381,129.95

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Double scale
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Similar ratio
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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.