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Finding the Fourth Proportional to 524,383.36, 786,374.70 and 187,360.72

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Solution

The fourth proportional to 524,383.36, 786,374.70 and 187,360.72 is: 280,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,383.36 : 786,374.70 = 187,360.72 : x
  2. Step 2: Convert to fraction form
    524,383.36/786,374.70 = 187,360.72/x
  3. Step 3: Cross multiply
    524,383.36x = 786,374.70 × 187,360.72
  4. Step 4: Simplify right side
    524,383.36x = 147,335,729,981.78
  5. Step 5: Solve for x
    x = 147,335,729,981.78/524,383.36
  6. Step 6: Final answer
    x = 280,969.50

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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.