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Finding the Fourth Proportional to 346,514.82, 519,954.40 and 245,961.78

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Solution

The fourth proportional to 346,514.82, 519,954.40 and 245,961.78 is: 369,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,514.82 : 519,954.40 = 245,961.78 : x
  2. Step 2: Convert to fraction form
    346,514.82/519,954.40 = 245,961.78/x
  3. Step 3: Cross multiply
    346,514.82x = 519,954.40 × 245,961.78
  4. Step 4: Simplify right side
    346,514.82x = 127,888,909,742.83
  5. Step 5: Solve for x
    x = 127,888,909,742.83/346,514.82
  6. Step 6: Final answer
    x = 369,071.98

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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.