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Finding the Fourth Proportional to 841,189.72, 1,160,840.68 and 539,383

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Solution

The fourth proportional to 841,189.72, 1,160,840.68 and 539,383 is: 744,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,189.72 : 1,160,840.68 = 539,383 : x
  2. Step 2: Convert to fraction form
    841,189.72/1,160,840.68 = 539,383/x
  3. Step 3: Cross multiply
    841,189.72x = 1,160,840.68 × 539,383
  4. Step 4: Simplify right side
    841,189.72x = 626,137,728,500.44
  5. Step 5: Solve for x
    x = 626,137,728,500.44/841,189.72
  6. Step 6: Final answer
    x = 744,347.81

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Double scale
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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.