Home / 389,816.32-537,947.04-210,968.32

Finding the Fourth Proportional to 389,816.32, 537,947.04 and 210,968.32

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Solution

The fourth proportional to 389,816.32, 537,947.04 and 210,968.32 is: 291,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,816.32 : 537,947.04 = 210,968.32 : x
  2. Step 2: Convert to fraction form
    389,816.32/537,947.04 = 210,968.32/x
  3. Step 3: Cross multiply
    389,816.32x = 537,947.04 × 210,968.32
  4. Step 4: Simplify right side
    389,816.32x = 113,489,783,277.77
  5. Step 5: Solve for x
    x = 113,489,783,277.77/389,816.32
  6. Step 6: Final answer
    x = 291,136.56

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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.