Home / 386,238.40-533,029.44-216,526.72

Finding the Fourth Proportional to 386,238.40, 533,029.44 and 216,526.72

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Solution

The fourth proportional to 386,238.40, 533,029.44 and 216,526.72 is: 298,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,238.40 : 533,029.44 = 216,526.72 : x
  2. Step 2: Convert to fraction form
    386,238.40/533,029.44 = 216,526.72/x
  3. Step 3: Cross multiply
    386,238.40x = 533,029.44 × 216,526.72
  4. Step 4: Simplify right side
    386,238.40x = 115,415,116,306.64
  5. Step 5: Solve for x
    x = 115,415,116,306.64/386,238.40
  6. Step 6: Final answer
    x = 298,818.34

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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.