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Finding the Fourth Proportional to 437,371.38, 656,264.43 and 260,228.34

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Solution

The fourth proportional to 437,371.38, 656,264.43 and 260,228.34 is: 390,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,371.38 : 656,264.43 = 260,228.34 : x
  2. Step 2: Convert to fraction form
    437,371.38/656,264.43 = 260,228.34/x
  3. Step 3: Cross multiply
    437,371.38x = 656,264.43 × 260,228.34
  4. Step 4: Simplify right side
    437,371.38x = 170,778,603,219.95
  5. Step 5: Solve for x
    x = 170,778,603,219.95/437,371.38
  6. Step 6: Final answer
    x = 390,465.89

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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.