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Finding the Fourth Proportional to 583,512.61, 805,216.34 and 325,416.08

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Solution

The fourth proportional to 583,512.61, 805,216.34 and 325,416.08 is: 449,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,512.61 : 805,216.34 = 325,416.08 : x
  2. Step 2: Convert to fraction form
    583,512.61/805,216.34 = 325,416.08/x
  3. Step 3: Cross multiply
    583,512.61x = 805,216.34 × 325,416.08
  4. Step 4: Simplify right side
    583,512.61x = 262,030,347,741.33
  5. Step 5: Solve for x
    x = 262,030,347,741.33/583,512.61
  6. Step 6: Final answer
    x = 449,056.87

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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.