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Finding the Fourth Proportional to 582,448.60, 873,672.90 and 345,669.40

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Solution

The fourth proportional to 582,448.60, 873,672.90 and 345,669.40 is: 518,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,448.60 : 873,672.90 = 345,669.40 : x
  2. Step 2: Convert to fraction form
    582,448.60/873,672.90 = 345,669.40/x
  3. Step 3: Cross multiply
    582,448.60x = 873,672.90 × 345,669.40
  4. Step 4: Simplify right side
    582,448.60x = 302,001,987,139.26
  5. Step 5: Solve for x
    x = 302,001,987,139.26/582,448.60
  6. Step 6: Final answer
    x = 518,504.10

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Similar ratio
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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.