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Finding the Fourth Proportional to 367,637.40, 551,456.10 and 330,312.60

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Solution

The fourth proportional to 367,637.40, 551,456.10 and 330,312.60 is: 495,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,637.40 : 551,456.10 = 330,312.60 : x
  2. Step 2: Convert to fraction form
    367,637.40/551,456.10 = 330,312.60/x
  3. Step 3: Cross multiply
    367,637.40x = 551,456.10 × 330,312.60
  4. Step 4: Simplify right side
    367,637.40x = 182,152,898,176.86
  5. Step 5: Solve for x
    x = 182,152,898,176.86/367,637.40
  6. Step 6: Final answer
    x = 495,468.90

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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.