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Finding the Fourth Proportional to 546,365.81, 818,003.23 and 289,613.36

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Solution

The fourth proportional to 546,365.81, 818,003.23 and 289,613.36 is: 433,600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,365.81 : 818,003.23 = 289,613.36 : x
  2. Step 2: Convert to fraction form
    546,365.81/818,003.23 = 289,613.36/x
  3. Step 3: Cross multiply
    546,365.81x = 818,003.23 × 289,613.36
  4. Step 4: Simplify right side
    546,365.81x = 236,904,663,931.15
  5. Step 5: Solve for x
    x = 236,904,663,931.15/546,365.81
  6. Step 6: Final answer
    x = 433,600.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.