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Finding the Fourth Proportional to 461,686.34, 637,392.21 and 351,929.05

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Solution

The fourth proportional to 461,686.34, 637,392.21 and 351,929.05 is: 485,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,686.34 : 637,392.21 = 351,929.05 : x
  2. Step 2: Convert to fraction form
    461,686.34/637,392.21 = 351,929.05/x
  3. Step 3: Cross multiply
    461,686.34x = 637,392.21 × 351,929.05
  4. Step 4: Simplify right side
    461,686.34x = 224,316,834,942.70
  5. Step 5: Solve for x
    x = 224,316,834,942.70/461,686.34
  6. Step 6: Final answer
    x = 485,864.14

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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.