Home / 513,211.83-769,818.15-139,234.83

Finding the Fourth Proportional to 513,211.83, 769,818.15 and 139,234.83

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Solution

The fourth proportional to 513,211.83, 769,818.15 and 139,234.83 is: 208,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,211.83 : 769,818.15 = 139,234.83 : x
  2. Step 2: Convert to fraction form
    513,211.83/769,818.15 = 139,234.83/x
  3. Step 3: Cross multiply
    513,211.83x = 769,818.15 × 139,234.83
  4. Step 4: Simplify right side
    513,211.83x = 107,185,499,246.16
  5. Step 5: Solve for x
    x = 107,185,499,246.16/513,211.83
  6. Step 6: Final answer
    x = 208,852.35

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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.