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Finding the Fourth Proportional to 422,798.88, 633,533.14 and 326,970.69

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Solution

The fourth proportional to 422,798.88, 633,533.14 and 326,970.69 is: 489,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,798.88 : 633,533.14 = 326,970.69 : x
  2. Step 2: Convert to fraction form
    422,798.88/633,533.14 = 326,970.69/x
  3. Step 3: Cross multiply
    422,798.88x = 633,533.14 × 326,970.69
  4. Step 4: Simplify right side
    422,798.88x = 207,146,767,923.67
  5. Step 5: Solve for x
    x = 207,146,767,923.67/422,798.88
  6. Step 6: Final answer
    x = 489,941.62

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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.