Home / 624,488.09-861,814.45-382,723.94

Finding the Fourth Proportional to 624,488.09, 861,814.45 and 382,723.94

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Solution

The fourth proportional to 624,488.09, 861,814.45 and 382,723.94 is: 528,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,488.09 : 861,814.45 = 382,723.94 : x
  2. Step 2: Convert to fraction form
    624,488.09/861,814.45 = 382,723.94/x
  3. Step 3: Cross multiply
    624,488.09x = 861,814.45 × 382,723.94
  4. Step 4: Simplify right side
    624,488.09x = 329,837,019,939.31
  5. Step 5: Solve for x
    x = 329,837,019,939.31/624,488.09
  6. Step 6: Final answer
    x = 528,171.84

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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.