Home / 685,733.60-1,028,764.68-286,152.14

Finding the Fourth Proportional to 685,733.60, 1,028,764.68 and 286,152.14

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Solution

The fourth proportional to 685,733.60, 1,028,764.68 and 286,152.14 is: 429,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,733.60 : 1,028,764.68 = 286,152.14 : x
  2. Step 2: Convert to fraction form
    685,733.60/1,028,764.68 = 286,152.14/x
  3. Step 3: Cross multiply
    685,733.60x = 1,028,764.68 × 286,152.14
  4. Step 4: Simplify right side
    685,733.60x = 294,383,214,738.42
  5. Step 5: Solve for x
    x = 294,383,214,738.42/685,733.60
  6. Step 6: Final answer
    x = 429,296.76

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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.