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Finding the Fourth Proportional to 468,433.01, 646,389.61 and 272,168.90

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Solution

The fourth proportional to 468,433.01, 646,389.61 and 272,168.90 is: 375,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,433.01 : 646,389.61 = 272,168.90 : x
  2. Step 2: Convert to fraction form
    468,433.01/646,389.61 = 272,168.90/x
  3. Step 3: Cross multiply
    468,433.01x = 646,389.61 × 272,168.90
  4. Step 4: Simplify right side
    468,433.01x = 175,927,149,125.13
  5. Step 5: Solve for x
    x = 175,927,149,125.13/468,433.01
  6. Step 6: Final answer
    x = 375,565.23

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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.