Home / 985,071.78-1,358,558.33-679,635.36

Finding the Fourth Proportional to 985,071.78, 1,358,558.33 and 679,635.36

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Solution

The fourth proportional to 985,071.78, 1,358,558.33 and 679,635.36 is: 937,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,071.78 : 1,358,558.33 = 679,635.36 : x
  2. Step 2: Convert to fraction form
    985,071.78/1,358,558.33 = 679,635.36/x
  3. Step 3: Cross multiply
    985,071.78x = 1,358,558.33 × 679,635.36
  4. Step 4: Simplify right side
    985,071.78x = 923,324,276,292.37
  5. Step 5: Solve for x
    x = 923,324,276,292.37/985,071.78
  6. Step 6: Final answer
    x = 937,316.75

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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.