Home / 289,443.75-433,417.86-199,763.19

Finding the Fourth Proportional to 289,443.75, 433,417.86 and 199,763.19

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Solution

The fourth proportional to 289,443.75, 433,417.86 and 199,763.19 is: 299,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,443.75 : 433,417.86 = 199,763.19 : x
  2. Step 2: Convert to fraction form
    289,443.75/433,417.86 = 199,763.19/x
  3. Step 3: Cross multiply
    289,443.75x = 433,417.86 × 199,763.19
  4. Step 4: Simplify right side
    289,443.75x = 86,580,934,316.57
  5. Step 5: Solve for x
    x = 86,580,934,316.57/289,443.75
  6. Step 6: Final answer
    x = 299,128.71

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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.