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Finding the Fourth Proportional to 518,014.32, 776,166.12 and 236,911.92

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Solution

The fourth proportional to 518,014.32, 776,166.12 and 236,911.92 is: 354,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,014.32 : 776,166.12 = 236,911.92 : x
  2. Step 2: Convert to fraction form
    518,014.32/776,166.12 = 236,911.92/x
  3. Step 3: Cross multiply
    518,014.32x = 776,166.12 × 236,911.92
  4. Step 4: Simplify right side
    518,014.32x = 183,883,005,728.15
  5. Step 5: Solve for x
    x = 183,883,005,728.15/518,014.32
  6. Step 6: Final answer
    x = 354,976.68

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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.