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Finding the Fourth Proportional to 583,861.23, 805,729.28 and 315,589.23

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Solution

The fourth proportional to 583,861.23, 805,729.28 and 315,589.23 is: 435,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,861.23 : 805,729.28 = 315,589.23 : x
  2. Step 2: Convert to fraction form
    583,861.23/805,729.28 = 315,589.23/x
  3. Step 3: Cross multiply
    583,861.23x = 805,729.28 × 315,589.23
  4. Step 4: Simplify right side
    583,861.23x = 254,279,481,485.71
  5. Step 5: Solve for x
    x = 254,279,481,485.71/583,861.23
  6. Step 6: Final answer
    x = 435,513.56

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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.