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Finding the Fourth Proportional to 518,188.58, 777,508.76 and 181,470.77

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Solution

The fourth proportional to 518,188.58, 777,508.76 and 181,470.77 is: 272,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,188.58 : 777,508.76 = 181,470.77 : x
  2. Step 2: Convert to fraction form
    518,188.58/777,508.76 = 181,470.77/x
  3. Step 3: Cross multiply
    518,188.58x = 777,508.76 × 181,470.77
  4. Step 4: Simplify right side
    518,188.58x = 141,095,113,358.95
  5. Step 5: Solve for x
    x = 141,095,113,358.95/518,188.58
  6. Step 6: Final answer
    x = 272,285.26

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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.