Home / 910,572.64-1,256,679.66-528,576.64

Finding the Fourth Proportional to 910,572.64, 1,256,679.66 and 528,576.64

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Solution

The fourth proportional to 910,572.64, 1,256,679.66 and 528,576.64 is: 729,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,572.64 : 1,256,679.66 = 528,576.64 : x
  2. Step 2: Convert to fraction form
    910,572.64/1,256,679.66 = 528,576.64/x
  3. Step 3: Cross multiply
    910,572.64x = 1,256,679.66 × 528,576.64
  4. Step 4: Simplify right side
    910,572.64x = 664,251,511,079.61
  5. Step 5: Solve for x
    x = 664,251,511,079.61/910,572.64
  6. Step 6: Final answer
    x = 729,487.67

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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.