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Finding the Fourth Proportional to 502,551, 693,520.38 and 276,196.50

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Solution

The fourth proportional to 502,551, 693,520.38 and 276,196.50 is: 381,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,551 : 693,520.38 = 276,196.50 : x
  2. Step 2: Convert to fraction form
    502,551/693,520.38 = 276,196.50/x
  3. Step 3: Cross multiply
    502,551x = 693,520.38 × 276,196.50
  4. Step 4: Simplify right side
    502,551x = 191,547,901,634.67
  5. Step 5: Solve for x
    x = 191,547,901,634.67/502,551
  6. Step 6: Final answer
    x = 381,151.17

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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.