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Finding the Fourth Proportional to 583,786.18, 805,606.65 and 342,229.64

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Solution

The fourth proportional to 583,786.18, 805,606.65 and 342,229.64 is: 472,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,786.18 : 805,606.65 = 342,229.64 : x
  2. Step 2: Convert to fraction form
    583,786.18/805,606.65 = 342,229.64/x
  3. Step 3: Cross multiply
    583,786.18x = 805,606.65 × 342,229.64
  4. Step 4: Simplify right side
    583,786.18x = 275,702,469,783.07
  5. Step 5: Solve for x
    x = 275,702,469,783.07/583,786.18
  6. Step 6: Final answer
    x = 472,266.18

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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.