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Finding the Fourth Proportional to 561,599.53, 774,995.94 and 306,952.54

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Solution

The fourth proportional to 561,599.53, 774,995.94 and 306,952.54 is: 423,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,599.53 : 774,995.94 = 306,952.54 : x
  2. Step 2: Convert to fraction form
    561,599.53/774,995.94 = 306,952.54/x
  3. Step 3: Cross multiply
    561,599.53x = 774,995.94 × 306,952.54
  4. Step 4: Simplify right side
    561,599.53x = 237,886,970,335.20
  5. Step 5: Solve for x
    x = 237,886,970,335.20/561,599.53
  6. Step 6: Final answer
    x = 423,588.27

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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.