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Finding the Fourth Proportional to 586,436.18, 809,213.73 and 328,327.70

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Solution

The fourth proportional to 586,436.18, 809,213.73 and 328,327.70 is: 453,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,436.18 : 809,213.73 = 328,327.70 : x
  2. Step 2: Convert to fraction form
    586,436.18/809,213.73 = 328,327.70/x
  3. Step 3: Cross multiply
    586,436.18x = 809,213.73 × 328,327.70
  4. Step 4: Simplify right side
    586,436.18x = 265,687,282,779.32
  5. Step 5: Solve for x
    x = 265,687,282,779.32/586,436.18
  6. Step 6: Final answer
    x = 453,054.04

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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.