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Finding the Fourth Proportional to 561,349.92, 774,653.85 and 306,695.64

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Solution

The fourth proportional to 561,349.92, 774,653.85 and 306,695.64 is: 423,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,349.92 : 774,653.85 = 306,695.64 : x
  2. Step 2: Convert to fraction form
    561,349.92/774,653.85 = 306,695.64/x
  3. Step 3: Cross multiply
    561,349.92x = 774,653.85 × 306,695.64
  4. Step 4: Simplify right side
    561,349.92x = 237,582,958,304.21
  5. Step 5: Solve for x
    x = 237,582,958,304.21/561,349.92
  6. Step 6: Final answer
    x = 423,235.04

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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.