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Finding the Fourth Proportional to 586,842.63, 809,853.11 and 328,717.34

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Solution

The fourth proportional to 586,842.63, 809,853.11 and 328,717.34 is: 453,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,842.63 : 809,853.11 = 328,717.34 : x
  2. Step 2: Convert to fraction form
    586,842.63/809,853.11 = 328,717.34/x
  3. Step 3: Cross multiply
    586,842.63x = 809,853.11 × 328,717.34
  4. Step 4: Simplify right side
    586,842.63x = 266,212,754,417.08
  5. Step 5: Solve for x
    x = 266,212,754,417.08/586,842.63
  6. Step 6: Final answer
    x = 453,635.68

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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.