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Finding the Fourth Proportional to 586,826.55, 809,840.54 and 328,714.52

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Solution

The fourth proportional to 586,826.55, 809,840.54 and 328,714.52 is: 453,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,826.55 : 809,840.54 = 328,714.52 : x
  2. Step 2: Convert to fraction form
    586,826.55/809,840.54 = 328,714.52/x
  3. Step 3: Cross multiply
    586,826.55x = 809,840.54 × 328,714.52
  4. Step 4: Simplify right side
    586,826.55x = 266,206,344,382.64
  5. Step 5: Solve for x
    x = 266,206,344,382.64/586,826.55
  6. Step 6: Final answer
    x = 453,637.19

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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.