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Finding the Fourth Proportional to 612,061.40, 844,641.50 and 336,425.60

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Solution

The fourth proportional to 612,061.40, 844,641.50 and 336,425.60 is: 464,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,061.40 : 844,641.50 = 336,425.60 : x
  2. Step 2: Convert to fraction form
    612,061.40/844,641.50 = 336,425.60/x
  3. Step 3: Cross multiply
    612,061.40x = 844,641.50 × 336,425.60
  4. Step 4: Simplify right side
    612,061.40x = 284,159,023,422.40
  5. Step 5: Solve for x
    x = 284,159,023,422.40/612,061.40
  6. Step 6: Final answer
    x = 464,265.55

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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.