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Finding the Fourth Proportional to 583,408.50, 875,112.75 and 189,424.50

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Solution

The fourth proportional to 583,408.50, 875,112.75 and 189,424.50 is: 284,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,408.50 : 875,112.75 = 189,424.50 : x
  2. Step 2: Convert to fraction form
    583,408.50/875,112.75 = 189,424.50/x
  3. Step 3: Cross multiply
    583,408.50x = 875,112.75 × 189,424.50
  4. Step 4: Simplify right side
    583,408.50x = 165,767,795,112.38
  5. Step 5: Solve for x
    x = 165,767,795,112.38/583,408.50
  6. Step 6: Final answer
    x = 284,136.75

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Half scale
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Double scale
Find fourth proportional to 583,409.50, 875,114.25 and 189,425.50
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.