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Finding the Fourth Proportional to 617,653.28, 926,639.66 and 361,702.01

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Solution

The fourth proportional to 617,653.28, 926,639.66 and 361,702.01 is: 542,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,653.28 : 926,639.66 = 361,702.01 : x
  2. Step 2: Convert to fraction form
    617,653.28/926,639.66 = 361,702.01/x
  3. Step 3: Cross multiply
    617,653.28x = 926,639.66 × 361,702.01
  4. Step 4: Simplify right side
    617,653.28x = 335,167,427,567.72
  5. Step 5: Solve for x
    x = 335,167,427,567.72/617,653.28
  6. Step 6: Final answer
    x = 542,646.56

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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.