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Finding the Fourth Proportional to 514,253.86, 771,878.33 and 248,201.66

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Solution

The fourth proportional to 514,253.86, 771,878.33 and 248,201.66 is: 372,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,253.86 : 771,878.33 = 248,201.66 : x
  2. Step 2: Convert to fraction form
    514,253.86/771,878.33 = 248,201.66/x
  3. Step 3: Cross multiply
    514,253.86x = 771,878.33 × 248,201.66
  4. Step 4: Simplify right side
    514,253.86x = 191,581,484,443.47
  5. Step 5: Solve for x
    x = 191,581,484,443.47/514,253.86
  6. Step 6: Final answer
    x = 372,542.63

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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.