Home / 260,688.40-391,050.42-83,208.85

Finding the Fourth Proportional to 260,688.40, 391,050.42 and 83,208.85

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Solution

The fourth proportional to 260,688.40, 391,050.42 and 83,208.85 is: 124,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,688.40 : 391,050.42 = 83,208.85 : x
  2. Step 2: Convert to fraction form
    260,688.40/391,050.42 = 83,208.85/x
  3. Step 3: Cross multiply
    260,688.40x = 391,050.42 × 83,208.85
  4. Step 4: Simplify right side
    260,688.40x = 32,538,855,740.22
  5. Step 5: Solve for x
    x = 32,538,855,740.22/260,688.40
  6. Step 6: Final answer
    x = 124,818.96

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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.