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Finding the Fourth Proportional to 502,820.20, 693,880.50 and 273,374.20

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Solution

The fourth proportional to 502,820.20, 693,880.50 and 273,374.20 is: 377,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,820.20 : 693,880.50 = 273,374.20 : x
  2. Step 2: Convert to fraction form
    502,820.20/693,880.50 = 273,374.20/x
  3. Step 3: Cross multiply
    502,820.20x = 693,880.50 × 273,374.20
  4. Step 4: Simplify right side
    502,820.20x = 189,689,026,583.10
  5. Step 5: Solve for x
    x = 189,689,026,583.10/502,820.20
  6. Step 6: Final answer
    x = 377,250.21

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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.