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Finding the Fourth Proportional to 583,431.72, 875,147.44 and 140,199.72

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Solution

The fourth proportional to 583,431.72, 875,147.44 and 140,199.72 is: 210,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,431.72 : 875,147.44 = 140,199.72 : x
  2. Step 2: Convert to fraction form
    583,431.72/875,147.44 = 140,199.72/x
  3. Step 3: Cross multiply
    583,431.72x = 875,147.44 × 140,199.72
  4. Step 4: Simplify right side
    583,431.72x = 122,695,426,046.72
  5. Step 5: Solve for x
    x = 122,695,426,046.72/583,431.72
  6. Step 6: Final answer
    x = 210,299.55

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Half scale
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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.