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Finding the Fourth Proportional to 713,380.10, 984,453.36 and 391,092.85

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Solution

The fourth proportional to 713,380.10, 984,453.36 and 391,092.85 is: 539,702.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,380.10 : 984,453.36 = 391,092.85 : x
  2. Step 2: Convert to fraction form
    713,380.10/984,453.36 = 391,092.85/x
  3. Step 3: Cross multiply
    713,380.10x = 984,453.36 × 391,092.85
  4. Step 4: Simplify right side
    713,380.10x = 385,012,670,254.48
  5. Step 5: Solve for x
    x = 385,012,670,254.48/713,380.10
  6. Step 6: Final answer
    x = 539,702.00

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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.