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Finding the Fourth Proportional to 713,452.35, 984,553.02 and 391,165.23

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Solution

The fourth proportional to 713,452.35, 984,553.02 and 391,165.23 is: 539,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,452.35 : 984,553.02 = 391,165.23 : x
  2. Step 2: Convert to fraction form
    713,452.35/984,553.02 = 391,165.23/x
  3. Step 3: Cross multiply
    713,452.35x = 984,553.02 × 391,165.23
  4. Step 4: Simplify right side
    713,452.35x = 385,122,908,515.50
  5. Step 5: Solve for x
    x = 385,122,908,515.50/713,452.35
  6. Step 6: Final answer
    x = 539,801.86

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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.