Home / 913,764.42-1,261,126.80-526,505.67

Finding the Fourth Proportional to 913,764.42, 1,261,126.80 and 526,505.67

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Solution

The fourth proportional to 913,764.42, 1,261,126.80 and 526,505.67 is: 726,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,764.42 : 1,261,126.80 = 526,505.67 : x
  2. Step 2: Convert to fraction form
    913,764.42/1,261,126.80 = 526,505.67/x
  3. Step 3: Cross multiply
    913,764.42x = 1,261,126.80 × 526,505.67
  4. Step 4: Simplify right side
    913,764.42x = 663,990,410,788.96
  5. Step 5: Solve for x
    x = 663,990,410,788.96/913,764.42
  6. Step 6: Final answer
    x = 726,653.82

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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.