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Finding the Fourth Proportional to 626,715.11, 864,870.39 and 368,602.94

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Solution

The fourth proportional to 626,715.11, 864,870.39 and 368,602.94 is: 508,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,715.11 : 864,870.39 = 368,602.94 : x
  2. Step 2: Convert to fraction form
    626,715.11/864,870.39 = 368,602.94/x
  3. Step 3: Cross multiply
    626,715.11x = 864,870.39 × 368,602.94
  4. Step 4: Simplify right side
    626,715.11x = 318,793,766,629.93
  5. Step 5: Solve for x
    x = 318,793,766,629.93/626,715.11
  6. Step 6: Final answer
    x = 508,674.14

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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.