Home / 382,485.60-527,847.96-221,309.46

Finding the Fourth Proportional to 382,485.60, 527,847.96 and 221,309.46

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Solution

The fourth proportional to 382,485.60, 527,847.96 and 221,309.46 is: 305,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,485.60 : 527,847.96 = 221,309.46 : x
  2. Step 2: Convert to fraction form
    382,485.60/527,847.96 = 221,309.46/x
  3. Step 3: Cross multiply
    382,485.60x = 527,847.96 × 221,309.46
  4. Step 4: Simplify right side
    382,485.60x = 116,817,746,989.70
  5. Step 5: Solve for x
    x = 116,817,746,989.70/382,485.60
  6. Step 6: Final answer
    x = 305,417.37

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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.