Home / 784,652.87-1,082,542.19-512,877.42

Finding the Fourth Proportional to 784,652.87, 1,082,542.19 and 512,877.42

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Solution

The fourth proportional to 784,652.87, 1,082,542.19 and 512,877.42 is: 707,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,652.87 : 1,082,542.19 = 512,877.42 : x
  2. Step 2: Convert to fraction form
    784,652.87/1,082,542.19 = 512,877.42/x
  3. Step 3: Cross multiply
    784,652.87x = 1,082,542.19 × 512,877.42
  4. Step 4: Simplify right side
    784,652.87x = 555,211,442,883.96
  5. Step 5: Solve for x
    x = 555,211,442,883.96/784,652.87
  6. Step 6: Final answer
    x = 707,588.62

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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.