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Finding the Fourth Proportional to 586,062.20, 879,006.90 and 165,380.60

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Solution

The fourth proportional to 586,062.20, 879,006.90 and 165,380.60 is: 248,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,062.20 : 879,006.90 = 165,380.60 : x
  2. Step 2: Convert to fraction form
    586,062.20/879,006.90 = 165,380.60/x
  3. Step 3: Cross multiply
    586,062.20x = 879,006.90 × 165,380.60
  4. Step 4: Simplify right side
    586,062.20x = 145,370,688,526.14
  5. Step 5: Solve for x
    x = 145,370,688,526.14/586,062.20
  6. Step 6: Final answer
    x = 248,046.52

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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.