Home / 289,918.85-434,458.58-199,869.13

Finding the Fourth Proportional to 289,918.85, 434,458.58 and 199,869.13

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Solution

The fourth proportional to 289,918.85, 434,458.58 and 199,869.13 is: 299,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,918.85 : 434,458.58 = 199,869.13 : x
  2. Step 2: Convert to fraction form
    289,918.85/434,458.58 = 199,869.13/x
  3. Step 3: Cross multiply
    289,918.85x = 434,458.58 × 199,869.13
  4. Step 4: Simplify right side
    289,918.85x = 86,834,856,320.14
  5. Step 5: Solve for x
    x = 86,834,856,320.14/289,918.85
  6. Step 6: Final answer
    x = 299,514.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.