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Finding the Fourth Proportional to 674,504.75, 929,767.95 and 459,274.79

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Solution

The fourth proportional to 674,504.75, 929,767.95 and 459,274.79 is: 633,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,504.75 : 929,767.95 = 459,274.79 : x
  2. Step 2: Convert to fraction form
    674,504.75/929,767.95 = 459,274.79/x
  3. Step 3: Cross multiply
    674,504.75x = 929,767.95 × 459,274.79
  4. Step 4: Simplify right side
    674,504.75x = 427,018,982,309.40
  5. Step 5: Solve for x
    x = 427,018,982,309.40/674,504.75
  6. Step 6: Final answer
    x = 633,085.21

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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.