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Finding the Fourth Proportional to 624,888.41, 862,344.69 and 338,407.61

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Solution

The fourth proportional to 624,888.41, 862,344.69 and 338,407.61 is: 467,001.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,888.41 : 862,344.69 = 338,407.61 : x
  2. Step 2: Convert to fraction form
    624,888.41/862,344.69 = 338,407.61/x
  3. Step 3: Cross multiply
    624,888.41x = 862,344.69 × 338,407.61
  4. Step 4: Simplify right side
    624,888.41x = 291,824,005,539.09
  5. Step 5: Solve for x
    x = 291,824,005,539.09/624,888.41
  6. Step 6: Final answer
    x = 467,001.79

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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.