Home / 985,209.54-1,358,801.96-679,215.77

Finding the Fourth Proportional to 985,209.54, 1,358,801.96 and 679,215.77

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Solution

The fourth proportional to 985,209.54, 1,358,801.96 and 679,215.77 is: 936,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,209.54 : 1,358,801.96 = 679,215.77 : x
  2. Step 2: Convert to fraction form
    985,209.54/1,358,801.96 = 679,215.77/x
  3. Step 3: Cross multiply
    985,209.54x = 1,358,801.96 × 679,215.77
  4. Step 4: Simplify right side
    985,209.54x = 922,919,719,538.91
  5. Step 5: Solve for x
    x = 922,919,719,538.91/985,209.54
  6. Step 6: Final answer
    x = 936,775.05

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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.