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Finding the Fourth Proportional to 625,737.34, 938,745.71 and 265,919.60

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Solution

The fourth proportional to 625,737.34, 938,745.71 and 265,919.60 is: 398,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,737.34 : 938,745.71 = 265,919.60 : x
  2. Step 2: Convert to fraction form
    625,737.34/938,745.71 = 265,919.60/x
  3. Step 3: Cross multiply
    625,737.34x = 938,745.71 × 265,919.60
  4. Step 4: Simplify right side
    625,737.34x = 249,630,887,215.18
  5. Step 5: Solve for x
    x = 249,630,887,215.18/625,737.34
  6. Step 6: Final answer
    x = 398,938.77

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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.