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Finding the Fourth Proportional to 541,436.88, 746,856.00 and 347,779.40

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Solution

The fourth proportional to 541,436.88, 746,856.00 and 347,779.40 is: 479,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,436.88 : 746,856.00 = 347,779.40 : x
  2. Step 2: Convert to fraction form
    541,436.88/746,856.00 = 347,779.40/x
  3. Step 3: Cross multiply
    541,436.88x = 746,856.00 × 347,779.40
  4. Step 4: Simplify right side
    541,436.88x = 259,741,129,136.29
  5. Step 5: Solve for x
    x = 259,741,129,136.29/541,436.88
  6. Step 6: Final answer
    x = 479,725.60

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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.