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Finding the Fourth Proportional to 625,557.90, 863,271.36 and 339,076.71

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Solution

The fourth proportional to 625,557.90, 863,271.36 and 339,076.71 is: 467,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,557.90 : 863,271.36 = 339,076.71 : x
  2. Step 2: Convert to fraction form
    625,557.90/863,271.36 = 339,076.71/x
  3. Step 3: Cross multiply
    625,557.90x = 863,271.36 × 339,076.71
  4. Step 4: Simplify right side
    625,557.90x = 292,715,212,586.03
  5. Step 5: Solve for x
    x = 292,715,212,586.03/625,557.90
  6. Step 6: Final answer
    x = 467,926.65

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1.5x scale

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.