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Finding the Fourth Proportional to 346,606.43, 478,060.99 and 219,159

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Solution

The fourth proportional to 346,606.43, 478,060.99 and 219,159 is: 302,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,606.43 : 478,060.99 = 219,159 : x
  2. Step 2: Convert to fraction form
    346,606.43/478,060.99 = 219,159/x
  3. Step 3: Cross multiply
    346,606.43x = 478,060.99 × 219,159
  4. Step 4: Simplify right side
    346,606.43x = 104,771,367,959.51
  5. Step 5: Solve for x
    x = 104,771,367,959.51/346,606.43
  6. Step 6: Final answer
    x = 302,277.63

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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.