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Finding the Fourth Proportional to 446,421.89, 616,066.68 and 242,476.80

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Solution

The fourth proportional to 446,421.89, 616,066.68 and 242,476.80 is: 334,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,421.89 : 616,066.68 = 242,476.80 : x
  2. Step 2: Convert to fraction form
    446,421.89/616,066.68 = 242,476.80/x
  3. Step 3: Cross multiply
    446,421.89x = 616,066.68 × 242,476.80
  4. Step 4: Simplify right side
    446,421.89x = 149,381,877,153.02
  5. Step 5: Solve for x
    x = 149,381,877,153.02/446,421.89
  6. Step 6: Final answer
    x = 334,620.42

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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.