Home / 1,178,858.25-1,626,824.39-642,314.25

Finding the Fourth Proportional to 1,178,858.25, 1,626,824.39 and 642,314.25

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Solution

The fourth proportional to 1,178,858.25, 1,626,824.39 and 642,314.25 is: 886,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,858.25 : 1,626,824.39 = 642,314.25 : x
  2. Step 2: Convert to fraction form
    1,178,858.25/1,626,824.39 = 642,314.25/x
  3. Step 3: Cross multiply
    1,178,858.25x = 1,626,824.39 × 642,314.25
  4. Step 4: Simplify right side
    1,178,858.25x = 1,044,932,484,732.99
  5. Step 5: Solve for x
    x = 1,044,932,484,732.99/1,178,858.25
  6. Step 6: Final answer
    x = 886,393.67

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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.