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Finding the Fourth Proportional to 583,491, 875,236.50 and 189,507

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Solution

The fourth proportional to 583,491, 875,236.50 and 189,507 is: 284,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,491 : 875,236.50 = 189,507 : x
  2. Step 2: Convert to fraction form
    583,491/875,236.50 = 189,507/x
  3. Step 3: Cross multiply
    583,491x = 875,236.50 × 189,507
  4. Step 4: Simplify right side
    583,491x = 165,863,443,405.50
  5. Step 5: Solve for x
    x = 165,863,443,405.50/583,491
  6. Step 6: Final answer
    x = 284,260.50

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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.