Home / 784,326.52-1,082,123.78-440,111.86

Finding the Fourth Proportional to 784,326.52, 1,082,123.78 and 440,111.86

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Solution

The fourth proportional to 784,326.52, 1,082,123.78 and 440,111.86 is: 607,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,326.52 : 1,082,123.78 = 440,111.86 : x
  2. Step 2: Convert to fraction form
    784,326.52/1,082,123.78 = 440,111.86/x
  3. Step 3: Cross multiply
    784,326.52x = 1,082,123.78 × 440,111.86
  4. Step 4: Simplify right side
    784,326.52x = 476,255,509,566.03
  5. Step 5: Solve for x
    x = 476,255,509,566.03/784,326.52
  6. Step 6: Final answer
    x = 607,215.87

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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.