Home / 686,365.62-947,182.92-376,267.66

Finding the Fourth Proportional to 686,365.62, 947,182.92 and 376,267.66

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Solution

The fourth proportional to 686,365.62, 947,182.92 and 376,267.66 is: 519,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,365.62 : 947,182.92 = 376,267.66 : x
  2. Step 2: Convert to fraction form
    686,365.62/947,182.92 = 376,267.66/x
  3. Step 3: Cross multiply
    686,365.62x = 947,182.92 × 376,267.66
  4. Step 4: Simplify right side
    686,365.62x = 356,394,300,900.37
  5. Step 5: Solve for x
    x = 356,394,300,900.37/686,365.62
  6. Step 6: Final answer
    x = 519,248.47

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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.