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Finding the Fourth Proportional to 553,022.60, 829,176.78 and 303,637.64

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Solution

The fourth proportional to 553,022.60, 829,176.78 and 303,637.64 is: 455,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,022.60 : 829,176.78 = 303,637.64 : x
  2. Step 2: Convert to fraction form
    553,022.60/829,176.78 = 303,637.64/x
  3. Step 3: Cross multiply
    553,022.60x = 829,176.78 × 303,637.64
  4. Step 4: Simplify right side
    553,022.60x = 251,769,280,622.00
  5. Step 5: Solve for x
    x = 251,769,280,622.00/553,022.60
  6. Step 6: Final answer
    x = 455,260.38

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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.