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Finding the Fourth Proportional to 401,874.47, 555,047.05 and 264,666.74

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Solution

The fourth proportional to 401,874.47, 555,047.05 and 264,666.74 is: 365,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,874.47 : 555,047.05 = 264,666.74 : x
  2. Step 2: Convert to fraction form
    401,874.47/555,047.05 = 264,666.74/x
  3. Step 3: Cross multiply
    401,874.47x = 555,047.05 × 264,666.74
  4. Step 4: Simplify right side
    401,874.47x = 146,902,493,996.07
  5. Step 5: Solve for x
    x = 146,902,493,996.07/401,874.47
  6. Step 6: Final answer
    x = 365,543.23

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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.