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Finding the Fourth Proportional to 518,544.30, 777,816.45 and 323,852.70

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Solution

The fourth proportional to 518,544.30, 777,816.45 and 323,852.70 is: 485,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,544.30 : 777,816.45 = 323,852.70 : x
  2. Step 2: Convert to fraction form
    518,544.30/777,816.45 = 323,852.70/x
  3. Step 3: Cross multiply
    518,544.30x = 777,816.45 × 323,852.70
  4. Step 4: Simplify right side
    518,544.30x = 251,897,957,436.92
  5. Step 5: Solve for x
    x = 251,897,957,436.92/518,544.30
  6. Step 6: Final answer
    x = 485,779.05

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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.