Home / 711,815.87-982,305.92-389,525.98

Finding the Fourth Proportional to 711,815.87, 982,305.92 and 389,525.98

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Solution

The fourth proportional to 711,815.87, 982,305.92 and 389,525.98 is: 537,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,815.87 : 982,305.92 = 389,525.98 : x
  2. Step 2: Convert to fraction form
    711,815.87/982,305.92 = 389,525.98/x
  3. Step 3: Cross multiply
    711,815.87x = 982,305.92 × 389,525.98
  4. Step 4: Simplify right side
    711,815.87x = 382,633,674,665.85
  5. Step 5: Solve for x
    x = 382,633,674,665.85/711,815.87
  6. Step 6: Final answer
    x = 537,545.86

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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.