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Finding the Fourth Proportional to 583,838.56, 805,697.22 and 315,566.56

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Solution

The fourth proportional to 583,838.56, 805,697.22 and 315,566.56 is: 435,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,838.56 : 805,697.22 = 315,566.56 : x
  2. Step 2: Convert to fraction form
    583,838.56/805,697.22 = 315,566.56/x
  3. Step 3: Cross multiply
    583,838.56x = 805,697.22 × 315,566.56
  4. Step 4: Simplify right side
    583,838.56x = 254,251,100,116.96
  5. Step 5: Solve for x
    x = 254,251,100,116.96/583,838.56
  6. Step 6: Final answer
    x = 435,481.86

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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.