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Finding the Fourth Proportional to 492,377.78, 738,566.58 and 155,654.84

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Solution

The fourth proportional to 492,377.78, 738,566.58 and 155,654.84 is: 233,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,377.78 : 738,566.58 = 155,654.84 : x
  2. Step 2: Convert to fraction form
    492,377.78/738,566.58 = 155,654.84/x
  3. Step 3: Cross multiply
    492,377.78x = 738,566.58 × 155,654.84
  4. Step 4: Simplify right side
    492,377.78x = 114,961,462,839.25
  5. Step 5: Solve for x
    x = 114,961,462,839.25/492,377.78
  6. Step 6: Final answer
    x = 233,482.23

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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.