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Finding the Fourth Proportional to 626,570.88, 864,644.55 and 340,084.80

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Solution

The fourth proportional to 626,570.88, 864,644.55 and 340,084.80 is: 469,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,570.88 : 864,644.55 = 340,084.80 : x
  2. Step 2: Convert to fraction form
    626,570.88/864,644.55 = 340,084.80/x
  3. Step 3: Cross multiply
    626,570.88x = 864,644.55 × 340,084.80
  4. Step 4: Simplify right side
    626,570.88x = 294,052,468,857.84
  5. Step 5: Solve for x
    x = 294,052,468,857.84/626,570.88
  6. Step 6: Final answer
    x = 469,304.40

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Double scale
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Similar ratio
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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.