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Finding the Fourth Proportional to 294,420.60, 441,630.90 and 264,929.40

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Solution

The fourth proportional to 294,420.60, 441,630.90 and 264,929.40 is: 397,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,420.60 : 441,630.90 = 264,929.40 : x
  2. Step 2: Convert to fraction form
    294,420.60/441,630.90 = 264,929.40/x
  3. Step 3: Cross multiply
    294,420.60x = 441,630.90 × 264,929.40
  4. Step 4: Simplify right side
    294,420.60x = 117,001,009,358.46
  5. Step 5: Solve for x
    x = 117,001,009,358.46/294,420.60
  6. Step 6: Final answer
    x = 397,394.10

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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.