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Finding the Fourth Proportional to 1,332,342, 1,998,530.01 and 385,713.63

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Solution

The fourth proportional to 1,332,342, 1,998,530.01 and 385,713.63 is: 578,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,342 : 1,998,530.01 = 385,713.63 : x
  2. Step 2: Convert to fraction form
    1,332,342/1,998,530.01 = 385,713.63/x
  3. Step 3: Cross multiply
    1,332,342x = 1,998,530.01 × 385,713.63
  4. Step 4: Simplify right side
    1,332,342x = 770,860,264,821.04
  5. Step 5: Solve for x
    x = 770,860,264,821.04/1,332,342
  6. Step 6: Final answer
    x = 578,575.37

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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.