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Finding the Fourth Proportional to 511,784.73, 767,505.54 and 170,149.34

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Solution

The fourth proportional to 511,784.73, 767,505.54 and 170,149.34 is: 255,166.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,784.73 : 767,505.54 = 170,149.34 : x
  2. Step 2: Convert to fraction form
    511,784.73/767,505.54 = 170,149.34/x
  3. Step 3: Cross multiply
    511,784.73x = 767,505.54 × 170,149.34
  4. Step 4: Simplify right side
    511,784.73x = 130,590,563,634.17
  5. Step 5: Solve for x
    x = 130,590,563,634.17/511,784.73
  6. Step 6: Final answer
    x = 255,166.98

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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.