Home / 812,697.47-1,122,276.39-608,393.70

Finding the Fourth Proportional to 812,697.47, 1,122,276.39 and 608,393.70

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Solution

The fourth proportional to 812,697.47, 1,122,276.39 and 608,393.70 is: 840,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,697.47 : 1,122,276.39 = 608,393.70 : x
  2. Step 2: Convert to fraction form
    812,697.47/1,122,276.39 = 608,393.70/x
  3. Step 3: Cross multiply
    812,697.47x = 1,122,276.39 × 608,393.70
  4. Step 4: Simplify right side
    812,697.47x = 682,785,882,292.77
  5. Step 5: Solve for x
    x = 682,785,882,292.77/812,697.47
  6. Step 6: Final answer
    x = 840,147.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.