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Finding the Fourth Proportional to 508,463.40, 701,677.54 and 279,024.50

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Solution

The fourth proportional to 508,463.40, 701,677.54 and 279,024.50 is: 385,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,463.40 : 701,677.54 = 279,024.50 : x
  2. Step 2: Convert to fraction form
    508,463.40/701,677.54 = 279,024.50/x
  3. Step 3: Cross multiply
    508,463.40x = 701,677.54 × 279,024.50
  4. Step 4: Simplify right side
    508,463.40x = 195,785,224,759.73
  5. Step 5: Solve for x
    x = 195,785,224,759.73/508,463.40
  6. Step 6: Final answer
    x = 385,052.74

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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.