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Finding the Fourth Proportional to 492,714.40, 739,071.60 and 488,048.80

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Solution

The fourth proportional to 492,714.40, 739,071.60 and 488,048.80 is: 732,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,714.40 : 739,071.60 = 488,048.80 : x
  2. Step 2: Convert to fraction form
    492,714.40/739,071.60 = 488,048.80/x
  3. Step 3: Cross multiply
    492,714.40x = 739,071.60 × 488,048.80
  4. Step 4: Simplify right side
    492,714.40x = 360,703,007,494.08
  5. Step 5: Solve for x
    x = 360,703,007,494.08/492,714.40
  6. Step 6: Final answer
    x = 732,073.20

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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.