Home / 514,314.30-771,471.45-181,890.30

Finding the Fourth Proportional to 514,314.30, 771,471.45 and 181,890.30

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Solution

The fourth proportional to 514,314.30, 771,471.45 and 181,890.30 is: 272,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,314.30 : 771,471.45 = 181,890.30 : x
  2. Step 2: Convert to fraction form
    514,314.30/771,471.45 = 181,890.30/x
  3. Step 3: Cross multiply
    514,314.30x = 771,471.45 × 181,890.30
  4. Step 4: Simplify right side
    514,314.30x = 140,323,173,481.94
  5. Step 5: Solve for x
    x = 140,323,173,481.94/514,314.30
  6. Step 6: Final answer
    x = 272,835.45

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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.