Home / 685,696.44-1,024,374.84-443,840.16

Finding the Fourth Proportional to 685,696.44, 1,024,374.84 and 443,840.16

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Solution

The fourth proportional to 685,696.44, 1,024,374.84 and 443,840.16 is: 663,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,696.44 : 1,024,374.84 = 443,840.16 : x
  2. Step 2: Convert to fraction form
    685,696.44/1,024,374.84 = 443,840.16/x
  3. Step 3: Cross multiply
    685,696.44x = 1,024,374.84 × 443,840.16
  4. Step 4: Simplify right side
    685,696.44x = 454,658,692,885.57
  5. Step 5: Solve for x
    x = 454,658,692,885.57/685,696.44
  6. Step 6: Final answer
    x = 663,061.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.