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Finding the Fourth Proportional to 502,580.22, 693,562.95 and 276,240.30

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Solution

The fourth proportional to 502,580.22, 693,562.95 and 276,240.30 is: 381,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,580.22 : 693,562.95 = 276,240.30 : x
  2. Step 2: Convert to fraction form
    502,580.22/693,562.95 = 276,240.30/x
  3. Step 3: Cross multiply
    502,580.22x = 693,562.95 × 276,240.30
  4. Step 4: Simplify right side
    502,580.22x = 191,590,037,376.89
  5. Step 5: Solve for x
    x = 191,590,037,376.89/502,580.22
  6. Step 6: Final answer
    x = 381,212.85

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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.