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Finding the Fourth Proportional to 514,331.96, 771,548.72 and 177,328.30

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Solution

The fourth proportional to 514,331.96, 771,548.72 and 177,328.30 is: 266,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,331.96 : 771,548.72 = 177,328.30 : x
  2. Step 2: Convert to fraction form
    514,331.96/771,548.72 = 177,328.30/x
  3. Step 3: Cross multiply
    514,331.96x = 771,548.72 × 177,328.30
  4. Step 4: Simplify right side
    514,331.96x = 136,817,422,884.78
  5. Step 5: Solve for x
    x = 136,817,422,884.78/514,331.96
  6. Step 6: Final answer
    x = 266,009.96

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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.