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Finding the Fourth Proportional to 1,222,835.60, 1,834,512.60 and 369,837.20

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Solution

The fourth proportional to 1,222,835.60, 1,834,512.60 and 369,837.20 is: 554,834.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,835.60 : 1,834,512.60 = 369,837.20 : x
  2. Step 2: Convert to fraction form
    1,222,835.60/1,834,512.60 = 369,837.20/x
  3. Step 3: Cross multiply
    1,222,835.60x = 1,834,512.60 × 369,837.20
  4. Step 4: Simplify right side
    1,222,835.60x = 678,471,003,348.72
  5. Step 5: Solve for x
    x = 678,471,003,348.72/1,222,835.60
  6. Step 6: Final answer
    x = 554,834.19

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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.