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Finding the Fourth Proportional to 368,784.20, 553,176.30 and 368,784.20

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Solution

The fourth proportional to 368,784.20, 553,176.30 and 368,784.20 is: 553,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,784.20 : 553,176.30 = 368,784.20 : x
  2. Step 2: Convert to fraction form
    368,784.20/553,176.30 = 368,784.20/x
  3. Step 3: Cross multiply
    368,784.20x = 553,176.30 × 368,784.20
  4. Step 4: Simplify right side
    368,784.20x = 204,002,679,254.46
  5. Step 5: Solve for x
    x = 204,002,679,254.46/368,784.20
  6. Step 6: Final answer
    x = 553,176.30

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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.