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Finding the Fourth Proportional to 369,127.80, 553,691.70 and 362,129.40

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Solution

The fourth proportional to 369,127.80, 553,691.70 and 362,129.40 is: 543,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,127.80 : 553,691.70 = 362,129.40 : x
  2. Step 2: Convert to fraction form
    369,127.80/553,691.70 = 362,129.40/x
  3. Step 3: Cross multiply
    369,127.80x = 553,691.70 × 362,129.40
  4. Step 4: Simplify right side
    369,127.80x = 200,508,043,105.98
  5. Step 5: Solve for x
    x = 200,508,043,105.98/369,127.80
  6. Step 6: Final answer
    x = 543,194.10

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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.