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Finding the Fourth Proportional to 586,169.30, 876,629.55 and 491,690.90

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Solution

The fourth proportional to 586,169.30, 876,629.55 and 491,690.90 is: 735,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,169.30 : 876,629.55 = 491,690.90 : x
  2. Step 2: Convert to fraction form
    586,169.30/876,629.55 = 491,690.90/x
  3. Step 3: Cross multiply
    586,169.30x = 876,629.55 × 491,690.90
  4. Step 4: Simplify right side
    586,169.30x = 431,030,772,406.10
  5. Step 5: Solve for x
    x = 431,030,772,406.10/586,169.30
  6. Step 6: Final answer
    x = 735,334.95

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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.