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Finding the Fourth Proportional to 3,755,509.79, 5,631,850.43 and 1,358,761.91

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Solution

The fourth proportional to 3,755,509.79, 5,631,850.43 and 1,358,761.91 is: 2,037,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755,509.79 : 5,631,850.43 = 1,358,761.91 : x
  2. Step 2: Convert to fraction form
    3,755,509.79/5,631,850.43 = 1,358,761.91/x
  3. Step 3: Cross multiply
    3,755,509.79x = 5,631,850.43 × 1,358,761.91
  4. Step 4: Simplify right side
    3,755,509.79x = 7,652,343,840,307.31
  5. Step 5: Solve for x
    x = 7,652,343,840,307.31/3,755,509.79
  6. Step 6: Final answer
    x = 2,037,631.18

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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.