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Finding the Fourth Proportional to 583,647.96, 805,434.66 and 315,375.96

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Solution

The fourth proportional to 583,647.96, 805,434.66 and 315,375.96 is: 435,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,647.96 : 805,434.66 = 315,375.96 : x
  2. Step 2: Convert to fraction form
    583,647.96/805,434.66 = 315,375.96/x
  3. Step 3: Cross multiply
    583,647.96x = 805,434.66 × 315,375.96
  4. Step 4: Simplify right side
    583,647.96x = 254,014,729,114.77
  5. Step 5: Solve for x
    x = 254,014,729,114.77/583,647.96
  6. Step 6: Final answer
    x = 435,219.08

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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.