Home / 386,530.75-533,437.67-223,194.15

Finding the Fourth Proportional to 386,530.75, 533,437.67 and 223,194.15

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Solution

The fourth proportional to 386,530.75, 533,437.67 and 223,194.15 is: 308,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,530.75 : 533,437.67 = 223,194.15 : x
  2. Step 2: Convert to fraction form
    386,530.75/533,437.67 = 223,194.15/x
  3. Step 3: Cross multiply
    386,530.75x = 533,437.67 × 223,194.15
  4. Step 4: Simplify right side
    386,530.75x = 119,060,166,636.15
  5. Step 5: Solve for x
    x = 119,060,166,636.15/386,530.75
  6. Step 6: Final answer
    x = 308,022.50

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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.