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Finding the Fourth Proportional to 471,874.40, 662,490.40 and 471,874.40

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Solution

The fourth proportional to 471,874.40, 662,490.40 and 471,874.40 is: 662,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,874.40 : 662,490.40 = 471,874.40 : x
  2. Step 2: Convert to fraction form
    471,874.40/662,490.40 = 471,874.40/x
  3. Step 3: Cross multiply
    471,874.40x = 662,490.40 × 471,874.40
  4. Step 4: Simplify right side
    471,874.40x = 312,612,260,005.76
  5. Step 5: Solve for x
    x = 312,612,260,005.76/471,874.40
  6. Step 6: Final answer
    x = 662,490.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.