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Finding the Fourth Proportional to 570,832.64, 856,780.32 and 290,559.68

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Solution

The fourth proportional to 570,832.64, 856,780.32 and 290,559.68 is: 436,109.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,832.64 : 856,780.32 = 290,559.68 : x
  2. Step 2: Convert to fraction form
    570,832.64/856,780.32 = 290,559.68/x
  3. Step 3: Cross multiply
    570,832.64x = 856,780.32 × 290,559.68
  4. Step 4: Simplify right side
    570,832.64x = 248,945,815,609.50
  5. Step 5: Solve for x
    x = 248,945,815,609.50/570,832.64
  6. Step 6: Final answer
    x = 436,109.99

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1.5x scale

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.