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Finding the Fourth Proportional to 691,579.23, 954,383.51 and 385,674.95

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Solution

The fourth proportional to 691,579.23, 954,383.51 and 385,674.95 is: 532,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,579.23 : 954,383.51 = 385,674.95 : x
  2. Step 2: Convert to fraction form
    691,579.23/954,383.51 = 385,674.95/x
  3. Step 3: Cross multiply
    691,579.23x = 954,383.51 × 385,674.95
  4. Step 4: Simplify right side
    691,579.23x = 368,081,805,799.78
  5. Step 5: Solve for x
    x = 368,081,805,799.78/691,579.23
  6. Step 6: Final answer
    x = 532,233.75

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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.