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Finding the Fourth Proportional to 1,083,610.60, 1,623,083.10 and 896,986.60

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Solution

The fourth proportional to 1,083,610.60, 1,623,083.10 and 896,986.60 is: 1,343,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,610.60 : 1,623,083.10 = 896,986.60 : x
  2. Step 2: Convert to fraction form
    1,083,610.60/1,623,083.10 = 896,986.60/x
  3. Step 3: Cross multiply
    1,083,610.60x = 1,623,083.10 × 896,986.60
  4. Step 4: Simplify right side
    1,083,610.60x = 1,455,883,791,386.46
  5. Step 5: Solve for x
    x = 1,455,883,791,386.46/1,083,610.60
  6. Step 6: Final answer
    x = 1,343,548.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.