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Finding the Fourth Proportional to 423,043.04, 634,248.93 and 254,523.89

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Solution

The fourth proportional to 423,043.04, 634,248.93 and 254,523.89 is: 381,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,043.04 : 634,248.93 = 254,523.89 : x
  2. Step 2: Convert to fraction form
    423,043.04/634,248.93 = 254,523.89/x
  3. Step 3: Cross multiply
    423,043.04x = 634,248.93 × 254,523.89
  4. Step 4: Simplify right side
    423,043.04x = 161,431,504,891.94
  5. Step 5: Solve for x
    x = 161,431,504,891.94/423,043.04
  6. Step 6: Final answer
    x = 381,595.94

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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.