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Finding the Fourth Proportional to 5,904,689.40, 8,857,034.10 and 1,915,601.40

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Solution

The fourth proportional to 5,904,689.40, 8,857,034.10 and 1,915,601.40 is: 2,873,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,904,689.40 : 8,857,034.10 = 1,915,601.40 : x
  2. Step 2: Convert to fraction form
    5,904,689.40/8,857,034.10 = 1,915,601.40/x
  3. Step 3: Cross multiply
    5,904,689.40x = 8,857,034.10 × 1,915,601.40
  4. Step 4: Simplify right side
    5,904,689.40x = 16,966,546,921,807.74
  5. Step 5: Solve for x
    x = 16,966,546,921,807.74/5,904,689.40
  6. Step 6: Final answer
    x = 2,873,402.10

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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.