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Finding the Fourth Proportional to 294,718.60, 442,077.90 and 262,059.40

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Solution

The fourth proportional to 294,718.60, 442,077.90 and 262,059.40 is: 393,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,718.60 : 442,077.90 = 262,059.40 : x
  2. Step 2: Convert to fraction form
    294,718.60/442,077.90 = 262,059.40/x
  3. Step 3: Cross multiply
    294,718.60x = 442,077.90 × 262,059.40
  4. Step 4: Simplify right side
    294,718.60x = 115,850,669,227.26
  5. Step 5: Solve for x
    x = 115,850,669,227.26/294,718.60
  6. Step 6: Final answer
    x = 393,089.10

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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.