Home / 283,742.49-391,554.63-154,678.32

Finding the Fourth Proportional to 283,742.49, 391,554.63 and 154,678.32

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Solution

The fourth proportional to 283,742.49, 391,554.63 and 154,678.32 is: 213,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,742.49 : 391,554.63 = 154,678.32 : x
  2. Step 2: Convert to fraction form
    283,742.49/391,554.63 = 154,678.32/x
  3. Step 3: Cross multiply
    283,742.49x = 391,554.63 × 154,678.32
  4. Step 4: Simplify right side
    283,742.49x = 60,565,012,356.62
  5. Step 5: Solve for x
    x = 60,565,012,356.62/283,742.49
  6. Step 6: Final answer
    x = 213,450.63

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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.