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Finding the Fourth Proportional to 586,725.77, 809,614.55 and 328,566.82

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Solution

The fourth proportional to 586,725.77, 809,614.55 and 328,566.82 is: 453,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,725.77 : 809,614.55 = 328,566.82 : x
  2. Step 2: Convert to fraction form
    586,725.77/809,614.55 = 328,566.82/x
  3. Step 3: Cross multiply
    586,725.77x = 809,614.55 × 328,566.82
  4. Step 4: Simplify right side
    586,725.77x = 266,012,472,428.32
  5. Step 5: Solve for x
    x = 266,012,472,428.32/586,725.77
  6. Step 6: Final answer
    x = 453,384.68

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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.