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Finding the Fourth Proportional to 610,428.40, 914,994.60 and 294,679.60

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Solution

The fourth proportional to 610,428.40, 914,994.60 and 294,679.60 is: 441,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,428.40 : 914,994.60 = 294,679.60 : x
  2. Step 2: Convert to fraction form
    610,428.40/914,994.60 = 294,679.60/x
  3. Step 3: Cross multiply
    610,428.40x = 914,994.60 × 294,679.60
  4. Step 4: Simplify right side
    610,428.40x = 269,630,242,730.16
  5. Step 5: Solve for x
    x = 269,630,242,730.16/610,428.40
  6. Step 6: Final answer
    x = 441,706.58

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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.