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Finding the Fourth Proportional to 616,461.42, 850,699.80 and 344,530.38

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Solution

The fourth proportional to 616,461.42, 850,699.80 and 344,530.38 is: 475,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,461.42 : 850,699.80 = 344,530.38 : x
  2. Step 2: Convert to fraction form
    616,461.42/850,699.80 = 344,530.38/x
  3. Step 3: Cross multiply
    616,461.42x = 850,699.80 × 344,530.38
  4. Step 4: Simplify right side
    616,461.42x = 293,091,925,359.92
  5. Step 5: Solve for x
    x = 293,091,925,359.92/616,461.42
  6. Step 6: Final answer
    x = 475,442.45

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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.