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Finding the Fourth Proportional to 632,198.80, 946,915.80 and 490,848.40

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Solution

The fourth proportional to 632,198.80, 946,915.80 and 490,848.40 is: 735,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,198.80 : 946,915.80 = 490,848.40 : x
  2. Step 2: Convert to fraction form
    632,198.80/946,915.80 = 490,848.40/x
  3. Step 3: Cross multiply
    632,198.80x = 946,915.80 × 490,848.40
  4. Step 4: Simplify right side
    632,198.80x = 464,792,105,364.72
  5. Step 5: Solve for x
    x = 464,792,105,364.72/632,198.80
  6. Step 6: Final answer
    x = 735,199.28

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Double scale
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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.