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Finding the Fourth Proportional to 624,966.98, 862,458.45 and 338,490.50

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Solution

The fourth proportional to 624,966.98, 862,458.45 and 338,490.50 is: 467,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,966.98 : 862,458.45 = 338,490.50 : x
  2. Step 2: Convert to fraction form
    624,966.98/862,458.45 = 338,490.50/x
  3. Step 3: Cross multiply
    624,966.98x = 862,458.45 × 338,490.50
  4. Step 4: Simplify right side
    624,966.98x = 291,933,991,969.73
  5. Step 5: Solve for x
    x = 291,933,991,969.73/624,966.98
  6. Step 6: Final answer
    x = 467,119.07

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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.