Home / 619,913.52-855,260.64-405,177.53

Finding the Fourth Proportional to 619,913.52, 855,260.64 and 405,177.53

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Solution

The fourth proportional to 619,913.52, 855,260.64 and 405,177.53 is: 559,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,913.52 : 855,260.64 = 405,177.53 : x
  2. Step 2: Convert to fraction form
    619,913.52/855,260.64 = 405,177.53/x
  3. Step 3: Cross multiply
    619,913.52x = 855,260.64 × 405,177.53
  4. Step 4: Simplify right side
    619,913.52x = 346,532,389,345.12
  5. Step 5: Solve for x
    x = 346,532,389,345.12/619,913.52
  6. Step 6: Final answer
    x = 559,001.18

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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.