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Finding the Fourth Proportional to 528,074.20, 791,916.90 and 173,099.80

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Solution

The fourth proportional to 528,074.20, 791,916.90 and 173,099.80 is: 259,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,074.20 : 791,916.90 = 173,099.80 : x
  2. Step 2: Convert to fraction form
    528,074.20/791,916.90 = 173,099.80/x
  3. Step 3: Cross multiply
    528,074.20x = 791,916.90 × 173,099.80
  4. Step 4: Simplify right side
    528,074.20x = 137,080,657,006.62
  5. Step 5: Solve for x
    x = 137,080,657,006.62/528,074.20
  6. Step 6: Final answer
    x = 259,585.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.