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Finding the Fourth Proportional to 514,983.17, 772,327.12 and 155,188.86

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Solution

The fourth proportional to 514,983.17, 772,327.12 and 155,188.86 is: 232,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,983.17 : 772,327.12 = 155,188.86 : x
  2. Step 2: Convert to fraction form
    514,983.17/772,327.12 = 155,188.86/x
  3. Step 3: Cross multiply
    514,983.17x = 772,327.12 × 155,188.86
  4. Step 4: Simplify right side
    514,983.17x = 119,856,565,299.88
  5. Step 5: Solve for x
    x = 119,856,565,299.88/514,983.17
  6. Step 6: Final answer
    x = 232,738.80

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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.