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Finding the Fourth Proportional to 644,675.67, 967,206.69 and 260,226.59

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Solution

The fourth proportional to 644,675.67, 967,206.69 and 260,226.59 is: 390,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,675.67 : 967,206.69 = 260,226.59 : x
  2. Step 2: Convert to fraction form
    644,675.67/967,206.69 = 260,226.59/x
  3. Step 3: Cross multiply
    644,675.67x = 967,206.69 × 260,226.59
  4. Step 4: Simplify right side
    644,675.67x = 251,692,893,927.85
  5. Step 5: Solve for x
    x = 251,692,893,927.85/644,675.67
  6. Step 6: Final answer
    x = 390,417.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.