Home / 683,721.30-943,534.53-381,915.30

Finding the Fourth Proportional to 683,721.30, 943,534.53 and 381,915.30

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Solution

The fourth proportional to 683,721.30, 943,534.53 and 381,915.30 is: 527,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,721.30 : 943,534.53 = 381,915.30 : x
  2. Step 2: Convert to fraction form
    683,721.30/943,534.53 = 381,915.30/x
  3. Step 3: Cross multiply
    683,721.30x = 943,534.53 × 381,915.30
  4. Step 4: Simplify right side
    683,721.30x = 360,350,273,085.31
  5. Step 5: Solve for x
    x = 360,350,273,085.31/683,721.30
  6. Step 6: Final answer
    x = 527,042.63

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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.