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Finding the Fourth Proportional to 570,830.40, 855,662.40 and 334,051.20

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Solution

The fourth proportional to 570,830.40, 855,662.40 and 334,051.20 is: 500,735.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,830.40 : 855,662.40 = 334,051.20 : x
  2. Step 2: Convert to fraction form
    570,830.40/855,662.40 = 334,051.20/x
  3. Step 3: Cross multiply
    570,830.40x = 855,662.40 × 334,051.20
  4. Step 4: Simplify right side
    570,830.40x = 285,835,051,514.88
  5. Step 5: Solve for x
    x = 285,835,051,514.88/570,830.40
  6. Step 6: Final answer
    x = 500,735.51

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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.