Home / 805,646.25-1,111,818.96-443,085.39

Finding the Fourth Proportional to 805,646.25, 1,111,818.96 and 443,085.39

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Solution

The fourth proportional to 805,646.25, 1,111,818.96 and 443,085.39 is: 611,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,646.25 : 1,111,818.96 = 443,085.39 : x
  2. Step 2: Convert to fraction form
    805,646.25/1,111,818.96 = 443,085.39/x
  3. Step 3: Cross multiply
    805,646.25x = 1,111,818.96 × 443,085.39
  4. Step 4: Simplify right side
    805,646.25x = 492,630,737,500.99
  5. Step 5: Solve for x
    x = 492,630,737,500.99/805,646.25
  6. Step 6: Final answer
    x = 611,472.76

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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.