Home / 389,054.17-536,898.84-219,288.30

Finding the Fourth Proportional to 389,054.17, 536,898.84 and 219,288.30

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Solution

The fourth proportional to 389,054.17, 536,898.84 and 219,288.30 is: 302,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,054.17 : 536,898.84 = 219,288.30 : x
  2. Step 2: Convert to fraction form
    389,054.17/536,898.84 = 219,288.30/x
  3. Step 3: Cross multiply
    389,054.17x = 536,898.84 × 219,288.30
  4. Step 4: Simplify right side
    389,054.17x = 117,735,633,895.57
  5. Step 5: Solve for x
    x = 117,735,633,895.57/389,054.17
  6. Step 6: Final answer
    x = 302,620.16

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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.