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Finding the Fourth Proportional to 523,803.48, 722,659.44 and 342,618.88

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Solution

The fourth proportional to 523,803.48, 722,659.44 and 342,618.88 is: 472,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,803.48 : 722,659.44 = 342,618.88 : x
  2. Step 2: Convert to fraction form
    523,803.48/722,659.44 = 342,618.88/x
  3. Step 3: Cross multiply
    523,803.48x = 722,659.44 × 342,618.88
  4. Step 4: Simplify right side
    523,803.48x = 247,596,767,954.23
  5. Step 5: Solve for x
    x = 247,596,767,954.23/523,803.48
  6. Step 6: Final answer
    x = 472,690.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.