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Finding the Fourth Proportional to 879,881.60, 1,319,563.20 and 347,225.60

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Solution

The fourth proportional to 879,881.60, 1,319,563.20 and 347,225.60 is: 520,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,881.60 : 1,319,563.20 = 347,225.60 : x
  2. Step 2: Convert to fraction form
    879,881.60/1,319,563.20 = 347,225.60/x
  3. Step 3: Cross multiply
    879,881.60x = 1,319,563.20 × 347,225.60
  4. Step 4: Simplify right side
    879,881.60x = 458,186,123,857.92
  5. Step 5: Solve for x
    x = 458,186,123,857.92/879,881.60
  6. Step 6: Final answer
    x = 520,736.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.