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Finding the Fourth Proportional to 368,927.40, 553,391.10 and 368,927.40

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Solution

The fourth proportional to 368,927.40, 553,391.10 and 368,927.40 is: 553,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,927.40 : 553,391.10 = 368,927.40 : x
  2. Step 2: Convert to fraction form
    368,927.40/553,391.10 = 368,927.40/x
  3. Step 3: Cross multiply
    368,927.40x = 553,391.10 × 368,927.40
  4. Step 4: Simplify right side
    368,927.40x = 204,161,139,706.14
  5. Step 5: Solve for x
    x = 204,161,139,706.14/368,927.40
  6. Step 6: Final answer
    x = 553,391.10

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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.