Home / 283,609.50-391,379.43-154,547.70

Finding the Fourth Proportional to 283,609.50, 391,379.43 and 154,547.70

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Solution

The fourth proportional to 283,609.50, 391,379.43 and 154,547.70 is: 213,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,609.50 : 391,379.43 = 154,547.70 : x
  2. Step 2: Convert to fraction form
    283,609.50/391,379.43 = 154,547.70/x
  3. Step 3: Cross multiply
    283,609.50x = 391,379.43 × 154,547.70
  4. Step 4: Simplify right side
    283,609.50x = 60,486,790,733.81
  5. Step 5: Solve for x
    x = 60,486,790,733.81/283,609.50
  6. Step 6: Final answer
    x = 213,274.91

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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.