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Finding the Fourth Proportional to 369,087.80, 553,631.70 and 362,089.40

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Solution

The fourth proportional to 369,087.80, 553,631.70 and 362,089.40 is: 543,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,087.80 : 553,631.70 = 362,089.40 : x
  2. Step 2: Convert to fraction form
    369,087.80/553,631.70 = 362,089.40/x
  3. Step 3: Cross multiply
    369,087.80x = 553,631.70 × 362,089.40
  4. Step 4: Simplify right side
    369,087.80x = 200,464,170,073.98
  5. Step 5: Solve for x
    x = 200,464,170,073.98/369,087.80
  6. Step 6: Final answer
    x = 543,134.10

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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.