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Finding the Fourth Proportional to 934,309.60, 1,288,978.17 and 590,017.07

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Solution

The fourth proportional to 934,309.60, 1,288,978.17 and 590,017.07 is: 813,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,309.60 : 1,288,978.17 = 590,017.07 : x
  2. Step 2: Convert to fraction form
    934,309.60/1,288,978.17 = 590,017.07/x
  3. Step 3: Cross multiply
    934,309.60x = 1,288,978.17 × 590,017.07
  4. Step 4: Simplify right side
    934,309.60x = 760,519,123,157.36
  5. Step 5: Solve for x
    x = 760,519,123,157.36/934,309.60
  6. Step 6: Final answer
    x = 813,990.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.