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Finding the Fourth Proportional to 511,555.77, 766,233.95 and 415,059.39

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Solution

The fourth proportional to 511,555.77, 766,233.95 and 415,059.39 is: 621,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,555.77 : 766,233.95 = 415,059.39 : x
  2. Step 2: Convert to fraction form
    511,555.77/766,233.95 = 415,059.39/x
  3. Step 3: Cross multiply
    511,555.77x = 766,233.95 × 415,059.39
  4. Step 4: Simplify right side
    511,555.77x = 318,032,593,808.99
  5. Step 5: Solve for x
    x = 318,032,593,808.99/511,555.77
  6. Step 6: Final answer
    x = 621,696.82

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1.5x scale

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.