Home / 856,709.11-1,182,244.39-469,521.55

Finding the Fourth Proportional to 856,709.11, 1,182,244.39 and 469,521.55

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Solution

The fourth proportional to 856,709.11, 1,182,244.39 and 469,521.55 is: 647,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,709.11 : 1,182,244.39 = 469,521.55 : x
  2. Step 2: Convert to fraction form
    856,709.11/1,182,244.39 = 469,521.55/x
  3. Step 3: Cross multiply
    856,709.11x = 1,182,244.39 × 469,521.55
  4. Step 4: Simplify right side
    856,709.11x = 555,089,218,471.61
  5. Step 5: Solve for x
    x = 555,089,218,471.61/856,709.11
  6. Step 6: Final answer
    x = 647,931.97

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Double scale
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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.