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Finding the Fourth Proportional to 552,614.81, 762,607.25 and 310,897.54

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Solution

The fourth proportional to 552,614.81, 762,607.25 and 310,897.54 is: 429,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,614.81 : 762,607.25 = 310,897.54 : x
  2. Step 2: Convert to fraction form
    552,614.81/762,607.25 = 310,897.54/x
  3. Step 3: Cross multiply
    552,614.81x = 762,607.25 × 310,897.54
  4. Step 4: Simplify right side
    552,614.81x = 237,092,721,157.84
  5. Step 5: Solve for x
    x = 237,092,721,157.84/552,614.81
  6. Step 6: Final answer
    x = 429,037.94

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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.