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Finding the Fourth Proportional to 585,539.80, 879,621.90 and 561,628.60

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Solution

The fourth proportional to 585,539.80, 879,621.90 and 561,628.60 is: 843,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,539.80 : 879,621.90 = 561,628.60 : x
  2. Step 2: Convert to fraction form
    585,539.80/879,621.90 = 561,628.60/x
  3. Step 3: Cross multiply
    585,539.80x = 879,621.90 × 561,628.60
  4. Step 4: Simplify right side
    585,539.80x = 494,020,816,226.34
  5. Step 5: Solve for x
    x = 494,020,816,226.34/585,539.80
  6. Step 6: Final answer
    x = 843,701.51

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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.