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Finding the Fourth Proportional to 319,323.66, 479,317.63 and 235,178.83

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Solution

The fourth proportional to 319,323.66, 479,317.63 and 235,178.83 is: 353,012.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,323.66 : 479,317.63 = 235,178.83 : x
  2. Step 2: Convert to fraction form
    319,323.66/479,317.63 = 235,178.83/x
  3. Step 3: Cross multiply
    319,323.66x = 479,317.63 × 235,178.83
  4. Step 4: Simplify right side
    319,323.66x = 112,725,359,421.77
  5. Step 5: Solve for x
    x = 112,725,359,421.77/319,323.66
  6. Step 6: Final answer
    x = 353,012.86

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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.