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Finding the Fourth Proportional to 479,312.80, 718,094.40 and 292,105.60

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Solution

The fourth proportional to 479,312.80, 718,094.40 and 292,105.60 is: 437,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,312.80 : 718,094.40 = 292,105.60 : x
  2. Step 2: Convert to fraction form
    479,312.80/718,094.40 = 292,105.60/x
  3. Step 3: Cross multiply
    479,312.80x = 718,094.40 × 292,105.60
  4. Step 4: Simplify right side
    479,312.80x = 209,759,395,568.64
  5. Step 5: Solve for x
    x = 209,759,395,568.64/479,312.80
  6. Step 6: Final answer
    x = 437,625.27

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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.