Home / 709,795.26-979,516.44-455,145.84

Finding the Fourth Proportional to 709,795.26, 979,516.44 and 455,145.84

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Solution

The fourth proportional to 709,795.26, 979,516.44 and 455,145.84 is: 628,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,795.26 : 979,516.44 = 455,145.84 : x
  2. Step 2: Convert to fraction form
    709,795.26/979,516.44 = 455,145.84/x
  3. Step 3: Cross multiply
    709,795.26x = 979,516.44 × 455,145.84
  4. Step 4: Simplify right side
    709,795.26x = 445,822,832,877.61
  5. Step 5: Solve for x
    x = 445,822,832,877.61/709,795.26
  6. Step 6: Final answer
    x = 628,100.61

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Double scale
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1.5x scale

Why These Related Problems?

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