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Finding the Fourth Proportional to 361,431.60, 542,665.80 and 282,634.80

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Solution

The fourth proportional to 361,431.60, 542,665.80 and 282,634.80 is: 424,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,431.60 : 542,665.80 = 282,634.80 : x
  2. Step 2: Convert to fraction form
    361,431.60/542,665.80 = 282,634.80/x
  3. Step 3: Cross multiply
    361,431.60x = 542,665.80 × 282,634.80
  4. Step 4: Simplify right side
    361,431.60x = 153,376,239,849.84
  5. Step 5: Solve for x
    x = 153,376,239,849.84/361,431.60
  6. Step 6: Final answer
    x = 424,357.58

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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.