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Finding the Fourth Proportional to 577,328.76, 865,891.08 and 156,637.44

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Solution

The fourth proportional to 577,328.76, 865,891.08 and 156,637.44 is: 234,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,328.76 : 865,891.08 = 156,637.44 : x
  2. Step 2: Convert to fraction form
    577,328.76/865,891.08 = 156,637.44/x
  3. Step 3: Cross multiply
    577,328.76x = 865,891.08 × 156,637.44
  4. Step 4: Simplify right side
    577,328.76x = 135,630,962,090.04
  5. Step 5: Solve for x
    x = 135,630,962,090.04/577,328.76
  6. Step 6: Final answer
    x = 234,928.47

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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.