Home / 638,537.38-881,188.46-348,146.57

Finding the Fourth Proportional to 638,537.38, 881,188.46 and 348,146.57

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Solution

The fourth proportional to 638,537.38, 881,188.46 and 348,146.57 is: 480,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,537.38 : 881,188.46 = 348,146.57 : x
  2. Step 2: Convert to fraction form
    638,537.38/881,188.46 = 348,146.57/x
  3. Step 3: Cross multiply
    638,537.38x = 881,188.46 × 348,146.57
  4. Step 4: Simplify right side
    638,537.38x = 306,782,742,945.92
  5. Step 5: Solve for x
    x = 306,782,742,945.92/638,537.38
  6. Step 6: Final answer
    x = 480,446.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.