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Finding the Fourth Proportional to 570,374.85, 855,238.32 and 233,020.53

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Solution

The fourth proportional to 570,374.85, 855,238.32 and 233,020.53 is: 349,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,374.85 : 855,238.32 = 233,020.53 : x
  2. Step 2: Convert to fraction form
    570,374.85/855,238.32 = 233,020.53/x
  3. Step 3: Cross multiply
    570,374.85x = 855,238.32 × 233,020.53
  4. Step 4: Simplify right side
    570,374.85x = 199,288,086,602.71
  5. Step 5: Solve for x
    x = 199,288,086,602.71/570,374.85
  6. Step 6: Final answer
    x = 349,398.45

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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.