Home / 681,136.68-939,897.91-419,450.39

Finding the Fourth Proportional to 681,136.68, 939,897.91 and 419,450.39

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Solution

The fourth proportional to 681,136.68, 939,897.91 and 419,450.39 is: 578,798.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,136.68 : 939,897.91 = 419,450.39 : x
  2. Step 2: Convert to fraction form
    681,136.68/939,897.91 = 419,450.39/x
  3. Step 3: Cross multiply
    681,136.68x = 939,897.91 × 419,450.39
  4. Step 4: Simplify right side
    681,136.68x = 394,240,544,909.69
  5. Step 5: Solve for x
    x = 394,240,544,909.69/681,136.68
  6. Step 6: Final answer
    x = 578,798.00

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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.