Home / 619,925.52-855,277.20-405,189.57

Finding the Fourth Proportional to 619,925.52, 855,277.20 and 405,189.57

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Solution

The fourth proportional to 619,925.52, 855,277.20 and 405,189.57 is: 559,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,925.52 : 855,277.20 = 405,189.57 : x
  2. Step 2: Convert to fraction form
    619,925.52/855,277.20 = 405,189.57/x
  3. Step 3: Cross multiply
    619,925.52x = 855,277.20 × 405,189.57
  4. Step 4: Simplify right side
    619,925.52x = 346,549,400,898.80
  5. Step 5: Solve for x
    x = 346,549,400,898.80/619,925.52
  6. Step 6: Final answer
    x = 559,017.80

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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.