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Finding the Fourth Proportional to 435,894.91, 601,803.35 and 345,615.55

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Solution

The fourth proportional to 435,894.91, 601,803.35 and 345,615.55 is: 477,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,894.91 : 601,803.35 = 345,615.55 : x
  2. Step 2: Convert to fraction form
    435,894.91/601,803.35 = 345,615.55/x
  3. Step 3: Cross multiply
    435,894.91x = 601,803.35 × 345,615.55
  4. Step 4: Simplify right side
    435,894.91x = 207,992,595,802.09
  5. Step 5: Solve for x
    x = 207,992,595,802.09/435,894.91
  6. Step 6: Final answer
    x = 477,162.25

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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.