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Finding the Fourth Proportional to 884,349.12, 1,220,598.24 and 561,996

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Solution

The fourth proportional to 884,349.12, 1,220,598.24 and 561,996 is: 775,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,349.12 : 1,220,598.24 = 561,996 : x
  2. Step 2: Convert to fraction form
    884,349.12/1,220,598.24 = 561,996/x
  3. Step 3: Cross multiply
    884,349.12x = 1,220,598.24 × 561,996
  4. Step 4: Simplify right side
    884,349.12x = 685,971,328,487.04
  5. Step 5: Solve for x
    x = 685,971,328,487.04/884,349.12
  6. Step 6: Final answer
    x = 775,679.33

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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.