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Finding the Fourth Proportional to 586,891.98, 810,287.28 and 403,435.62

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Solution

The fourth proportional to 586,891.98, 810,287.28 and 403,435.62 is: 556,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,891.98 : 810,287.28 = 403,435.62 : x
  2. Step 2: Convert to fraction form
    586,891.98/810,287.28 = 403,435.62/x
  3. Step 3: Cross multiply
    586,891.98x = 810,287.28 × 403,435.62
  4. Step 4: Simplify right side
    586,891.98x = 326,898,751,184.91
  5. Step 5: Solve for x
    x = 326,898,751,184.91/586,891.98
  6. Step 6: Final answer
    x = 556,999.86

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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.