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Finding the Fourth Proportional to 343,307.60, 473,764.61 and 190,347.60

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Solution

The fourth proportional to 343,307.60, 473,764.61 and 190,347.60 is: 262,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,307.60 : 473,764.61 = 190,347.60 : x
  2. Step 2: Convert to fraction form
    343,307.60/473,764.61 = 190,347.60/x
  3. Step 3: Cross multiply
    343,307.60x = 473,764.61 × 190,347.60
  4. Step 4: Simplify right side
    343,307.60x = 90,179,958,730.92
  5. Step 5: Solve for x
    x = 90,179,958,730.92/343,307.60
  6. Step 6: Final answer
    x = 262,679.76

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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.