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Finding the Fourth Proportional to 586,674.12, 809,543.37 and 328,515.18

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Solution

The fourth proportional to 586,674.12, 809,543.37 and 328,515.18 is: 453,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,674.12 : 809,543.37 = 328,515.18 : x
  2. Step 2: Convert to fraction form
    586,674.12/809,543.37 = 328,515.18/x
  3. Step 3: Cross multiply
    586,674.12x = 809,543.37 × 328,515.18
  4. Step 4: Simplify right side
    586,674.12x = 265,947,285,913.36
  5. Step 5: Solve for x
    x = 265,947,285,913.36/586,674.12
  6. Step 6: Final answer
    x = 453,313.48

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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.