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Finding the Fourth Proportional to 1,173,766.71, 1,619,773.70 and 637,222.71

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Solution

The fourth proportional to 1,173,766.71, 1,619,773.70 and 637,222.71 is: 879,354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,766.71 : 1,619,773.70 = 637,222.71 : x
  2. Step 2: Convert to fraction form
    1,173,766.71/1,619,773.70 = 637,222.71/x
  3. Step 3: Cross multiply
    1,173,766.71x = 1,619,773.70 × 637,222.71
  4. Step 4: Simplify right side
    1,173,766.71x = 1,032,156,583,514.61
  5. Step 5: Solve for x
    x = 1,032,156,583,514.61/1,173,766.71
  6. Step 6: Final answer
    x = 879,354.11

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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.