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Finding the Fourth Proportional to 3,537,048.16, 5,305,893 and 978,423.40

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Solution

The fourth proportional to 3,537,048.16, 5,305,893 and 978,423.40 is: 1,467,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,537,048.16 : 5,305,893 = 978,423.40 : x
  2. Step 2: Convert to fraction form
    3,537,048.16/5,305,893 = 978,423.40/x
  3. Step 3: Cross multiply
    3,537,048.16x = 5,305,893 × 978,423.40
  4. Step 4: Simplify right side
    3,537,048.16x = 5,191,409,869,096.20
  5. Step 5: Solve for x
    x = 5,191,409,869,096.20/3,537,048.16
  6. Step 6: Final answer
    x = 1,467,723.83

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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.