Home / 405,913.18-608,798.49-125,432.86

Finding the Fourth Proportional to 405,913.18, 608,798.49 and 125,432.86

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Solution

The fourth proportional to 405,913.18, 608,798.49 and 125,432.86 is: 188,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,913.18 : 608,798.49 = 125,432.86 : x
  2. Step 2: Convert to fraction form
    405,913.18/608,798.49 = 125,432.86/x
  3. Step 3: Cross multiply
    405,913.18x = 608,798.49 × 125,432.86
  4. Step 4: Simplify right side
    405,913.18x = 76,363,335,764.38
  5. Step 5: Solve for x
    x = 76,363,335,764.38/405,913.18
  6. Step 6: Final answer
    x = 188,127.26

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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.