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Finding the Fourth Proportional to 622,544.66, 933,676.82 and 406,335.35

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Solution

The fourth proportional to 622,544.66, 933,676.82 and 406,335.35 is: 609,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,544.66 : 933,676.82 = 406,335.35 : x
  2. Step 2: Convert to fraction form
    622,544.66/933,676.82 = 406,335.35/x
  3. Step 3: Cross multiply
    622,544.66x = 933,676.82 × 406,335.35
  4. Step 4: Simplify right side
    622,544.66x = 379,385,890,741.53
  5. Step 5: Solve for x
    x = 379,385,890,741.53/622,544.66
  6. Step 6: Final answer
    x = 609,411.53

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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.