Home / 497,534.69-686,590.27-279,743.56

Finding the Fourth Proportional to 497,534.69, 686,590.27 and 279,743.56

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Solution

The fourth proportional to 497,534.69, 686,590.27 and 279,743.56 is: 386,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,534.69 : 686,590.27 = 279,743.56 : x
  2. Step 2: Convert to fraction form
    497,534.69/686,590.27 = 279,743.56/x
  3. Step 3: Cross multiply
    497,534.69x = 686,590.27 × 279,743.56
  4. Step 4: Simplify right side
    497,534.69x = 192,069,201,559.49
  5. Step 5: Solve for x
    x = 192,069,201,559.49/497,534.69
  6. Step 6: Final answer
    x = 386,041.83

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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.