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Finding the Fourth Proportional to 441,991.89, 609,788.88 and 289,117.35

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Solution

The fourth proportional to 441,991.89, 609,788.88 and 289,117.35 is: 398,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,991.89 : 609,788.88 = 289,117.35 : x
  2. Step 2: Convert to fraction form
    441,991.89/609,788.88 = 289,117.35/x
  3. Step 3: Cross multiply
    441,991.89x = 609,788.88 × 289,117.35
  4. Step 4: Simplify right side
    441,991.89x = 176,300,545,045.07
  5. Step 5: Solve for x
    x = 176,300,545,045.07/441,991.89
  6. Step 6: Final answer
    x = 398,877.33

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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.