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Finding the Fourth Proportional to 577,588.61, 866,407.50 and 178,220.54

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Solution

The fourth proportional to 577,588.61, 866,407.50 and 178,220.54 is: 267,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,588.61 : 866,407.50 = 178,220.54 : x
  2. Step 2: Convert to fraction form
    577,588.61/866,407.50 = 178,220.54/x
  3. Step 3: Cross multiply
    577,588.61x = 866,407.50 × 178,220.54
  4. Step 4: Simplify right side
    577,588.61x = 154,411,608,178.01
  5. Step 5: Solve for x
    x = 154,411,608,178.01/577,588.61
  6. Step 6: Final answer
    x = 267,338.39

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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.