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Finding the Fourth Proportional to 675,123.15, 931,651.52 and 373,306.83

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Solution

The fourth proportional to 675,123.15, 931,651.52 and 373,306.83 is: 515,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,123.15 : 931,651.52 = 373,306.83 : x
  2. Step 2: Convert to fraction form
    675,123.15/931,651.52 = 373,306.83/x
  3. Step 3: Cross multiply
    675,123.15x = 931,651.52 × 373,306.83
  4. Step 4: Simplify right side
    675,123.15x = 347,791,873,729.35
  5. Step 5: Solve for x
    x = 347,791,873,729.35/675,123.15
  6. Step 6: Final answer
    x = 515,153.23

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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.