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Finding the Fourth Proportional to 461,886.05, 637,684.15 and 316,929.98

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Solution

The fourth proportional to 461,886.05, 637,684.15 and 316,929.98 is: 437,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,886.05 : 637,684.15 = 316,929.98 : x
  2. Step 2: Convert to fraction form
    461,886.05/637,684.15 = 316,929.98/x
  3. Step 3: Cross multiply
    461,886.05x = 637,684.15 × 316,929.98
  4. Step 4: Simplify right side
    461,886.05x = 202,101,223,834.56
  5. Step 5: Solve for x
    x = 202,101,223,834.56/461,886.05
  6. Step 6: Final answer
    x = 437,556.46

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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.