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Finding the Fourth Proportional to 644,674.55, 967,205.00 and 260,225.46

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Solution

The fourth proportional to 644,674.55, 967,205.00 and 260,225.46 is: 390,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,674.55 : 967,205.00 = 260,225.46 : x
  2. Step 2: Convert to fraction form
    644,674.55/967,205.00 = 260,225.46/x
  3. Step 3: Cross multiply
    644,674.55x = 967,205.00 × 260,225.46
  4. Step 4: Simplify right side
    644,674.55x = 251,691,366,689.86
  5. Step 5: Solve for x
    x = 251,691,366,689.86/644,674.55
  6. Step 6: Final answer
    x = 390,416.17

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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.