Home / 386,543.73-533,412.28-214,459.86

Finding the Fourth Proportional to 386,543.73, 533,412.28 and 214,459.86

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Solution

The fourth proportional to 386,543.73, 533,412.28 and 214,459.86 is: 295,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,543.73 : 533,412.28 = 214,459.86 : x
  2. Step 2: Convert to fraction form
    386,543.73/533,412.28 = 214,459.86/x
  3. Step 3: Cross multiply
    386,543.73x = 533,412.28 × 214,459.86
  4. Step 4: Simplify right side
    386,543.73x = 114,395,523,953.12
  5. Step 5: Solve for x
    x = 114,395,523,953.12/386,543.73
  6. Step 6: Final answer
    x = 295,944.58

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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.