Home / 864,098.70-1,296,148.05-509,804.70

Finding the Fourth Proportional to 864,098.70, 1,296,148.05 and 509,804.70

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Solution

The fourth proportional to 864,098.70, 1,296,148.05 and 509,804.70 is: 764,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,098.70 : 1,296,148.05 = 509,804.70 : x
  2. Step 2: Convert to fraction form
    864,098.70/1,296,148.05 = 509,804.70/x
  3. Step 3: Cross multiply
    864,098.70x = 1,296,148.05 × 509,804.70
  4. Step 4: Simplify right side
    864,098.70x = 660,782,367,785.84
  5. Step 5: Solve for x
    x = 660,782,367,785.84/864,098.70
  6. Step 6: Final answer
    x = 764,707.05

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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.