Home / 283,615.46-391,384.26-154,555.05

Finding the Fourth Proportional to 283,615.46, 391,384.26 and 154,555.05

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Solution

The fourth proportional to 283,615.46, 391,384.26 and 154,555.05 is: 213,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.46 : 391,384.26 = 154,555.05 : x
  2. Step 2: Convert to fraction form
    283,615.46/391,384.26 = 154,555.05/x
  3. Step 3: Cross multiply
    283,615.46x = 391,384.26 × 154,555.05
  4. Step 4: Simplify right side
    283,615.46x = 60,490,413,873.51
  5. Step 5: Solve for x
    x = 60,490,413,873.51/283,615.46
  6. Step 6: Final answer
    x = 213,283.20

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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.