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Finding the Fourth Proportional to 572,690.32, 858,387.36 and 291,613.84

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Solution

The fourth proportional to 572,690.32, 858,387.36 and 291,613.84 is: 437,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,690.32 : 858,387.36 = 291,613.84 : x
  2. Step 2: Convert to fraction form
    572,690.32/858,387.36 = 291,613.84/x
  3. Step 3: Cross multiply
    572,690.32x = 858,387.36 × 291,613.84
  4. Step 4: Simplify right side
    572,690.32x = 250,317,634,257.06
  5. Step 5: Solve for x
    x = 250,317,634,257.06/572,690.32
  6. Step 6: Final answer
    x = 437,090.74

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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.