Home / 619,926.36-855,526.79-344,285.47

Finding the Fourth Proportional to 619,926.36, 855,526.79 and 344,285.47

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Solution

The fourth proportional to 619,926.36, 855,526.79 and 344,285.47 is: 475,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,926.36 : 855,526.79 = 344,285.47 : x
  2. Step 2: Convert to fraction form
    619,926.36/855,526.79 = 344,285.47/x
  3. Step 3: Cross multiply
    619,926.36x = 855,526.79 × 344,285.47
  4. Step 4: Simplify right side
    619,926.36x = 294,545,442,992.74
  5. Step 5: Solve for x
    x = 294,545,442,992.74/619,926.36
  6. Step 6: Final answer
    x = 475,129.73

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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.