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Finding the Fourth Proportional to 766,391.54, 1,057,511.85 and 435,236

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Solution

The fourth proportional to 766,391.54, 1,057,511.85 and 435,236 is: 600,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,391.54 : 1,057,511.85 = 435,236 : x
  2. Step 2: Convert to fraction form
    766,391.54/1,057,511.85 = 435,236/x
  3. Step 3: Cross multiply
    766,391.54x = 1,057,511.85 × 435,236
  4. Step 4: Simplify right side
    766,391.54x = 460,267,227,546.60
  5. Step 5: Solve for x
    x = 460,267,227,546.60/766,391.54
  6. Step 6: Final answer
    x = 600,564.08

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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.