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Finding the Fourth Proportional to 627,931.03, 866,534.93 and 341,448.61

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Solution

The fourth proportional to 627,931.03, 866,534.93 and 341,448.61 is: 471,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,931.03 : 866,534.93 = 341,448.61 : x
  2. Step 2: Convert to fraction form
    627,931.03/866,534.93 = 341,448.61/x
  3. Step 3: Cross multiply
    627,931.03x = 866,534.93 × 341,448.61
  4. Step 4: Simplify right side
    627,931.03x = 295,877,143,885.89
  5. Step 5: Solve for x
    x = 295,877,143,885.89/627,931.03
  6. Step 6: Final answer
    x = 471,193.70

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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.