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Finding the Fourth Proportional to 626,368.64, 939,696.48 and 271,442.24

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Solution

The fourth proportional to 626,368.64, 939,696.48 and 271,442.24 is: 407,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,368.64 : 939,696.48 = 271,442.24 : x
  2. Step 2: Convert to fraction form
    626,368.64/939,696.48 = 271,442.24/x
  3. Step 3: Cross multiply
    626,368.64x = 939,696.48 × 271,442.24
  4. Step 4: Simplify right side
    626,368.64x = 255,073,317,451.32
  5. Step 5: Solve for x
    x = 255,073,317,451.32/626,368.64
  6. Step 6: Final answer
    x = 407,225.56

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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.