Home / 389,193.36-537,086.52-210,345.36

Finding the Fourth Proportional to 389,193.36, 537,086.52 and 210,345.36

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Solution

The fourth proportional to 389,193.36, 537,086.52 and 210,345.36 is: 290,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,193.36 : 537,086.52 = 210,345.36 : x
  2. Step 2: Convert to fraction form
    389,193.36/537,086.52 = 210,345.36/x
  3. Step 3: Cross multiply
    389,193.36x = 537,086.52 × 210,345.36
  4. Step 4: Simplify right side
    389,193.36x = 112,973,657,400.55
  5. Step 5: Solve for x
    x = 112,973,657,400.55/389,193.36
  6. Step 6: Final answer
    x = 290,276.43

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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.