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Finding the Fourth Proportional to 572,326.40, 858,489.60 and 151,644.80

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Solution

The fourth proportional to 572,326.40, 858,489.60 and 151,644.80 is: 227,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,326.40 : 858,489.60 = 151,644.80 : x
  2. Step 2: Convert to fraction form
    572,326.40/858,489.60 = 151,644.80/x
  3. Step 3: Cross multiply
    572,326.40x = 858,489.60 × 151,644.80
  4. Step 4: Simplify right side
    572,326.40x = 130,185,483,694.08
  5. Step 5: Solve for x
    x = 130,185,483,694.08/572,326.40
  6. Step 6: Final answer
    x = 227,467.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.