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Finding the Fourth Proportional to 611,897.44, 841,423.80 and 531,183.76

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Solution

The fourth proportional to 611,897.44, 841,423.80 and 531,183.76 is: 730,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,897.44 : 841,423.80 = 531,183.76 : x
  2. Step 2: Convert to fraction form
    611,897.44/841,423.80 = 531,183.76/x
  3. Step 3: Cross multiply
    611,897.44x = 841,423.80 × 531,183.76
  4. Step 4: Simplify right side
    611,897.44x = 446,950,657,837.49
  5. Step 5: Solve for x
    x = 446,950,657,837.49/611,897.44
  6. Step 6: Final answer
    x = 730,433.94

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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.