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Finding the Fourth Proportional to 553,617.30, 830,425.95 and 553,617.30

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Solution

The fourth proportional to 553,617.30, 830,425.95 and 553,617.30 is: 830,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,617.30 : 830,425.95 = 553,617.30 : x
  2. Step 2: Convert to fraction form
    553,617.30/830,425.95 = 553,617.30/x
  3. Step 3: Cross multiply
    553,617.30x = 830,425.95 × 553,617.30
  4. Step 4: Simplify right side
    553,617.30x = 459,738,172,288.94
  5. Step 5: Solve for x
    x = 459,738,172,288.94/553,617.30
  6. Step 6: Final answer
    x = 830,425.95

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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.