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Finding the Fourth Proportional to 555,441.92, 766,508.68 and 300,792.32

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Solution

The fourth proportional to 555,441.92, 766,508.68 and 300,792.32 is: 415,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,441.92 : 766,508.68 = 300,792.32 : x
  2. Step 2: Convert to fraction form
    555,441.92/766,508.68 = 300,792.32/x
  3. Step 3: Cross multiply
    555,441.92x = 766,508.68 × 300,792.32
  4. Step 4: Simplify right side
    555,441.92x = 230,559,924,157.34
  5. Step 5: Solve for x
    x = 230,559,924,157.34/555,441.92
  6. Step 6: Final answer
    x = 415,092.77

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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.