Home / 738,384.60-1,107,763.70-205,905.68

Finding the Fourth Proportional to 738,384.60, 1,107,763.70 and 205,905.68

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Solution

The fourth proportional to 738,384.60, 1,107,763.70 and 205,905.68 is: 308,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,384.60 : 1,107,763.70 = 205,905.68 : x
  2. Step 2: Convert to fraction form
    738,384.60/1,107,763.70 = 205,905.68/x
  3. Step 3: Cross multiply
    738,384.60x = 1,107,763.70 × 205,905.68
  4. Step 4: Simplify right side
    738,384.60x = 228,094,837,927.82
  5. Step 5: Solve for x
    x = 228,094,837,927.82/738,384.60
  6. Step 6: Final answer
    x = 308,910.61

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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.