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Finding the Fourth Proportional to 385,584.44, 577,370.64 and 310,293.32

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Solution

The fourth proportional to 385,584.44, 577,370.64 and 310,293.32 is: 464,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,584.44 : 577,370.64 = 310,293.32 : x
  2. Step 2: Convert to fraction form
    385,584.44/577,370.64 = 310,293.32/x
  3. Step 3: Cross multiply
    385,584.44x = 577,370.64 × 310,293.32
  4. Step 4: Simplify right side
    385,584.44x = 179,154,252,756.13
  5. Step 5: Solve for x
    x = 179,154,252,756.13/385,584.44
  6. Step 6: Final answer
    x = 464,630.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.