Home / 677,142.06-933,811.38-405,166.74

Finding the Fourth Proportional to 677,142.06, 933,811.38 and 405,166.74

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Solution

The fourth proportional to 677,142.06, 933,811.38 and 405,166.74 is: 558,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,142.06 : 933,811.38 = 405,166.74 : x
  2. Step 2: Convert to fraction form
    677,142.06/933,811.38 = 405,166.74/x
  3. Step 3: Cross multiply
    677,142.06x = 933,811.38 × 405,166.74
  4. Step 4: Simplify right side
    677,142.06x = 378,349,312,609.50
  5. Step 5: Solve for x
    x = 378,349,312,609.50/677,142.06
  6. Step 6: Final answer
    x = 558,744.37

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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.