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Finding the Fourth Proportional to 616,428.16, 850,667.94 and 344,495.90

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Solution

The fourth proportional to 616,428.16, 850,667.94 and 344,495.90 is: 475,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,428.16 : 850,667.94 = 344,495.90 : x
  2. Step 2: Convert to fraction form
    616,428.16/850,667.94 = 344,495.90/x
  3. Step 3: Cross multiply
    616,428.16x = 850,667.94 × 344,495.90
  4. Step 4: Simplify right side
    616,428.16x = 293,051,614,676.01
  5. Step 5: Solve for x
    x = 293,051,614,676.01/616,428.16
  6. Step 6: Final answer
    x = 475,402.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.