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Finding the Fourth Proportional to 993,744.90, 1,490,641.74 and 362,658.60

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Solution

The fourth proportional to 993,744.90, 1,490,641.74 and 362,658.60 is: 543,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,744.90 : 1,490,641.74 = 362,658.60 : x
  2. Step 2: Convert to fraction form
    993,744.90/1,490,641.74 = 362,658.60/x
  3. Step 3: Cross multiply
    993,744.90x = 1,490,641.74 × 362,658.60
  4. Step 4: Simplify right side
    993,744.90x = 540,594,046,529.96
  5. Step 5: Solve for x
    x = 540,594,046,529.96/993,744.90
  6. Step 6: Final answer
    x = 543,996.80

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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.