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Finding the Fourth Proportional to 534,947.65, 738,303.28 and 331,064.24

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Solution

The fourth proportional to 534,947.65, 738,303.28 and 331,064.24 is: 456,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,947.65 : 738,303.28 = 331,064.24 : x
  2. Step 2: Convert to fraction form
    534,947.65/738,303.28 = 331,064.24/x
  3. Step 3: Cross multiply
    534,947.65x = 738,303.28 × 331,064.24
  4. Step 4: Simplify right side
    534,947.65x = 244,425,809,763.53
  5. Step 5: Solve for x
    x = 244,425,809,763.53/534,947.65
  6. Step 6: Final answer
    x = 456,915.38

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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.