Home / 389,387.37-537,359.64-226,082.16

Finding the Fourth Proportional to 389,387.37, 537,359.64 and 226,082.16

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Solution

The fourth proportional to 389,387.37, 537,359.64 and 226,082.16 is: 311,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,387.37 : 537,359.64 = 226,082.16 : x
  2. Step 2: Convert to fraction form
    389,387.37/537,359.64 = 226,082.16/x
  3. Step 3: Cross multiply
    389,387.37x = 537,359.64 × 226,082.16
  4. Step 4: Simplify right side
    389,387.37x = 121,487,428,108.02
  5. Step 5: Solve for x
    x = 121,487,428,108.02/389,387.37
  6. Step 6: Final answer
    x = 311,996.32

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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.