Home / 691,123.84-1,036,615.65-185,619.13

Finding the Fourth Proportional to 691,123.84, 1,036,615.65 and 185,619.13

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Solution

The fourth proportional to 691,123.84, 1,036,615.65 and 185,619.13 is: 278,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,123.84 : 1,036,615.65 = 185,619.13 : x
  2. Step 2: Convert to fraction form
    691,123.84/1,036,615.65 = 185,619.13/x
  3. Step 3: Cross multiply
    691,123.84x = 1,036,615.65 × 185,619.13
  4. Step 4: Simplify right side
    691,123.84x = 192,415,695,097.39
  5. Step 5: Solve for x
    x = 192,415,695,097.39/691,123.84
  6. Step 6: Final answer
    x = 278,409.87

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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.