Home / 386,054.37-532,089.68-256,761.63

Finding the Fourth Proportional to 386,054.37, 532,089.68 and 256,761.63

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Solution

The fourth proportional to 386,054.37, 532,089.68 and 256,761.63 is: 353,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,054.37 : 532,089.68 = 256,761.63 : x
  2. Step 2: Convert to fraction form
    386,054.37/532,089.68 = 256,761.63/x
  3. Step 3: Cross multiply
    386,054.37x = 532,089.68 × 256,761.63
  4. Step 4: Simplify right side
    386,054.37x = 136,620,212,259.17
  5. Step 5: Solve for x
    x = 136,620,212,259.17/386,054.37
  6. Step 6: Final answer
    x = 353,888.53

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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.