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Finding the Fourth Proportional to 619,316.12, 854,673.36 and 377,543.36

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Solution

The fourth proportional to 619,316.12, 854,673.36 and 377,543.36 is: 521,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,316.12 : 854,673.36 = 377,543.36 : x
  2. Step 2: Convert to fraction form
    619,316.12/854,673.36 = 377,543.36/x
  3. Step 3: Cross multiply
    619,316.12x = 854,673.36 × 377,543.36
  4. Step 4: Simplify right side
    619,316.12x = 322,676,252,036.89
  5. Step 5: Solve for x
    x = 322,676,252,036.89/619,316.12
  6. Step 6: Final answer
    x = 521,020.27

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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.