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Finding the Fourth Proportional to 526,920.96, 727,155.84 and 300,579.84

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Solution

The fourth proportional to 526,920.96, 727,155.84 and 300,579.84 is: 414,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,920.96 : 727,155.84 = 300,579.84 : x
  2. Step 2: Convert to fraction form
    526,920.96/727,155.84 = 300,579.84/x
  3. Step 3: Cross multiply
    526,920.96x = 727,155.84 × 300,579.84
  4. Step 4: Simplify right side
    526,920.96x = 218,568,386,042.27
  5. Step 5: Solve for x
    x = 218,568,386,042.27/526,920.96
  6. Step 6: Final answer
    x = 414,802.98

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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.