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Finding the Fourth Proportional to 369,873.54, 556,130.61 and 340,644.15

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Solution

The fourth proportional to 369,873.54, 556,130.61 and 340,644.15 is: 512,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,873.54 : 556,130.61 = 340,644.15 : x
  2. Step 2: Convert to fraction form
    369,873.54/556,130.61 = 340,644.15/x
  3. Step 3: Cross multiply
    369,873.54x = 556,130.61 × 340,644.15
  4. Step 4: Simplify right side
    369,873.54x = 189,442,638,932.43
  5. Step 5: Solve for x
    x = 189,442,638,932.43/369,873.54
  6. Step 6: Final answer
    x = 512,182.19

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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.