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Finding the Fourth Proportional to 541,715.90, 747,319.80 and 350,790.80

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Solution

The fourth proportional to 541,715.90, 747,319.80 and 350,790.80 is: 483,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,715.90 : 747,319.80 = 350,790.80 : x
  2. Step 2: Convert to fraction form
    541,715.90/747,319.80 = 350,790.80/x
  3. Step 3: Cross multiply
    541,715.90x = 747,319.80 × 350,790.80
  4. Step 4: Simplify right side
    541,715.90x = 262,152,910,497.84
  5. Step 5: Solve for x
    x = 262,152,910,497.84/541,715.90
  6. Step 6: Final answer
    x = 483,930.62

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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.