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Finding the Fourth Proportional to 572,523.60, 858,785.40 and 362,398.80

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Solution

The fourth proportional to 572,523.60, 858,785.40 and 362,398.80 is: 543,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,523.60 : 858,785.40 = 362,398.80 : x
  2. Step 2: Convert to fraction form
    572,523.60/858,785.40 = 362,398.80/x
  3. Step 3: Cross multiply
    572,523.60x = 858,785.40 × 362,398.80
  4. Step 4: Simplify right side
    572,523.60x = 311,222,798,417.52
  5. Step 5: Solve for x
    x = 311,222,798,417.52/572,523.60
  6. Step 6: Final answer
    x = 543,598.20

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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.