Home / 386,960.81-533,987.96-214,889.69

Finding the Fourth Proportional to 386,960.81, 533,987.96 and 214,889.69

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Solution

The fourth proportional to 386,960.81, 533,987.96 and 214,889.69 is: 296,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,960.81 : 533,987.96 = 214,889.69 : x
  2. Step 2: Convert to fraction form
    386,960.81/533,987.96 = 214,889.69/x
  3. Step 3: Cross multiply
    386,960.81x = 533,987.96 × 214,889.69
  4. Step 4: Simplify right side
    386,960.81x = 114,748,508,657.41
  5. Step 5: Solve for x
    x = 114,748,508,657.41/386,960.81
  6. Step 6: Final answer
    x = 296,537.80

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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.