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Finding the Fourth Proportional to 598,936.80, 897,368.40 and 388,466.40

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Solution

The fourth proportional to 598,936.80, 897,368.40 and 388,466.40 is: 582,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,936.80 : 897,368.40 = 388,466.40 : x
  2. Step 2: Convert to fraction form
    598,936.80/897,368.40 = 388,466.40/x
  3. Step 3: Cross multiply
    598,936.80x = 897,368.40 × 388,466.40
  4. Step 4: Simplify right side
    598,936.80x = 348,597,471,821.76
  5. Step 5: Solve for x
    x = 348,597,471,821.76/598,936.80
  6. Step 6: Final answer
    x = 582,027.14

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1.5x scale

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.