Home / 619,923.52-855,274.44-405,187.57

Finding the Fourth Proportional to 619,923.52, 855,274.44 and 405,187.57

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Solution

The fourth proportional to 619,923.52, 855,274.44 and 405,187.57 is: 559,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,923.52 : 855,274.44 = 405,187.57 : x
  2. Step 2: Convert to fraction form
    619,923.52/855,274.44 = 405,187.57/x
  3. Step 3: Cross multiply
    619,923.52x = 855,274.44 × 405,187.57
  4. Step 4: Simplify right side
    619,923.52x = 346,546,572,026.71
  5. Step 5: Solve for x
    x = 346,546,572,026.71/619,923.52
  6. Step 6: Final answer
    x = 559,015.04

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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.