Home / 905,198.97-1,249,196.59-497,327.23

Finding the Fourth Proportional to 905,198.97, 1,249,196.59 and 497,327.23

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Solution

The fourth proportional to 905,198.97, 1,249,196.59 and 497,327.23 is: 686,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,198.97 : 1,249,196.59 = 497,327.23 : x
  2. Step 2: Convert to fraction form
    905,198.97/1,249,196.59 = 497,327.23/x
  3. Step 3: Cross multiply
    905,198.97x = 1,249,196.59 × 497,327.23
  4. Step 4: Simplify right side
    905,198.97x = 621,259,479,830.15
  5. Step 5: Solve for x
    x = 621,259,479,830.15/905,198.97
  6. Step 6: Final answer
    x = 686,323.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.